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a, ac, ad, af, ag, al, an, ap, as, at to, toward, near, in addition to, by. * accompany, adjust, affix, aggression, allocate, annihilate, aside, attend a-, an- not, without. * apolitical, atheist, anarchy, anonymous, apathy, aphasia, anemia ab, abs away from, off. * absolve, abrupt, absent -able, -ible {adj}: worth, ability. * solvable, incredible acer, acid, acri bitter, sour, sharp. * acerbic, acidity, acrid, acrimony act, ag do, act, drive. * active, react, agent, active, agitate ac, acu sharp. * acute, acupuncture, accurate -acy, -cy {n} {n}: state or quality. * privacy, infancy, adequacy, intimacy, supremacy -ade act, product, sweet drink. * blockade, lemonade aer, aero air, atmosphere, aviation. * aerial, aerosol, aerodrome, aerospace ag, agi, ig, act do, move, go. * agent, agenda, agitate, navigate, ambiguous, action -age {n}: activity, or result of action. * courage, suffrage, shrinkage, tonnage agri, agro pertaining to fields or soil. * agriculture -al {n} {n}: action, result of action. * referral, disavowal, disposal, festival -al, -ial, -ical {v} {adj}: quality, relation. * structural, territorial, categorical alb, albo white, without pigment. * albino, albumin ali, allo, alter other. * alias, alibi, alien, alloy, alter, altruism alt high, deep. * alternate, altimeter, altitude am, ami, amor love, like, liking. * amorous, amiable, amicable, enamored ambi- both. * ambivalent, ambiguous, ambidextrous, amphibious ambul to walk. * ambulatory, amble, ambulance, somnambulist -an {n}: person. * artisan, guardian, historian, magician ana, ano up, back, again, anew. * anode, anagram, anagenetic -ance, -ence {n}: action, state, quality or process. * resistance, independence, extravagance, fraudulence -ancy, -ency {n}: state, quality or capacity. * vacancy, agency, truancy, latency andr, andro male, characteristics of men. * androcentric, android ang angular. * angle, angularity anim mind, life, spirit, anger. * animal, animate, animosity ann, annu, enni yearly. * annual, anniversary, biennial, perrenial, septennial, sesquicentennial -ant, -ent {n}: an agent, something that performs the action. * disinfectant, dependent, fragrant -ant, -ent, -ient {adj}: kind of agent, indication. * important, dependent, convenient ante before. * anterior, anteroom, antebellum, antedate, antecedent, antediluvian anthrop man. * anthropology, misanthrope, philanthropy anti, ant against, opposite. * antisocial, antithesis, antibody, antinomies, antifreeze, antipathy anti, antico old. * antique, antiquated, antiquity apo, ap, aph away from, detached, formed. * apology, apocalypse, aphagia aqu water. * aqueous -ar, -ary {adj}: resembling, related to. * spectacular, unitary arch chief, first, rule. * archangel, architect, archaic, monarchy, matriarchy, Archeozoic era -ard, -art {n}: characterized. * braggart, drunkard, wizard aster-, astr-, astro- star, star-shaped. * aster, asterisk, asteroid, astronomy, astronaut -ate {n} {n}: state, office, fuction. * candidate, electorate, delegate -ate {v} {v}: cause to be. * graduate, ameliorate, amputate -ate {adj} {adj}: kind of state. * inviolate -ation {n}: action, resulting state. * specialization, aggravation, alternation auc, aug, aut to originate, to increase. * augment , author, augment, auction aud, audi, aur, aus to hear, listen. * audience, audio, auditorium, auricular, auscultate aug, auc increase. * augur, augment, auction aut, auto self. * automatic, automotive, autograph, autonomous, autoimmune avi- bird. * aviation axi- axis. * axisymmetry axio- merit. * axiology bar weight, pressure. * barometer, baroreceptor be on, around, over, about, excessively, make, cause, name, affect. * berate, bedeck, bespeak, belittle, beleaguer belli war. * rebellion, belligerent, casus belli, bellicose bene good, well, gentle. * benefactor, beneficial, benevolent, benediction, beneficiary, benefit bi, bine two. * biped, bifurcate, biweekly, bivalve, biannual bibl, bibli, biblio book. * bibliophile, bibliography, Bible bio, bi life. * biography, biology, biometric, biome, biosphere brev short. * abbreviate, brevity, brief burs money, finance. * bursar, bursary, disburse cad, cap, cas, ceiv, cept, capt, cid, cip to take, to seize, to hold. * accident, deceive, capacious, except, intercept, forceps, occasion, reciprocate cad, cas to fall. * accident, cadaver, cadence, cascade, occasional -cade procession. * motorcade calor heat. * calorie, caloric, calorimeter camp field. * campaign, champion capit, capt head. * decapitate, capital, captain, caption caps- box, case. * capsule, encapsulate carcer- jail. * incarcinate carn flesh. * carnivorous, incarnate, reincarnation, carnal cat, cata, cath down, with. * catalogue, catastrophe, category, catheter caus, caut burn, heat. * caustic, cauldron, cauterize cause, cuse, cus cause, motive. * because, excuse, accusation ceas, ced, cede, ceed, cess to go, to yield, move, go, surrender. * ancestry, exceed, proceed, precede, recede, secession, succeed cent hundred. * bicentennial, centennial, century, centipede, percent centr, centri center. * eccentricity, centrifugal, concentric, eccentric chrom color. * chrome, chromosome, polychrome, chromatic chron time. * chronology, chronic, chronicle chronometer, anachronism, synchronize cide, cis, cise to kill, to cut, cut down. * fratricide, homicide, incision, incision, circumcision, scissors circum around. * circumnavigate, circumorbital, circumscribe, circulatory cit call, start. * incite, citation, cite civ citizen. * civic, civil, civilian, civilization clam, claim cry out. * acclaim, clamor, disclaim, exclamation, proclamation, reclamation, clement- mild. * clemency, inclement clin lean, bend. * decline, inclination clud, clus claus to close, shut. * clause, claustrophobia, enclose, exclude, reclusive co, cog, col, coll, con, com, cor with, together. * cohesiveness, cognate, collaborate, convene, compress, confluence, conjoin cogn, gnos to know. * recognize, cognizant, diagnose, agnostic, incognito, prognosis com, con fully. * complete, compel, conscious, condense, confess, confirm contr, contra, counter against, opposite. * contradict, counteract, contravene, contrary, counterspy, contrapuntal cord, cor, cardi heart. * cordial, concord, discord, courage, encourage corp body. * corporation, corporal punishment, corpse, corpulent, corpus luteum cort correct. * escort, cortage cosm universe, world. * cosmos, microcosm, cosmopolitan, cosmonaut cour, cur, curr, curs run, course. * occur, excursion, discourse, courier, course crat, cracy rule. * autocrat, aristocrat, theocracy, technocracy cre, cresc, cret, crease grow. * create, crescent, accretion, increase crea create. * creature, recreation, creation cred believe. * creed, credo, credence, credit, incredulous, incredible cresc, cret, crease, cru rise, grow. * crescendo, concrete, increase, decrease, accrue crit separate, choose. * critical, criterion, hypocrite cur, curs run. * concurrent, concur, courier, incur, occur, precursor cura care. * curator, curative, manicure curv- bent. * curvature crypt- hidden. * cryptic, cryptography cub- {n} {n}: cube. * cubic, cuboid, cubicle cub- {v} {v}: to lean back, to lie down. * encumber, incubation cycl, cyclo wheel, circle, circular. * bicycle, Cyclops, cyclone, cyclic, unicycle cyst- capsule. * cystic damn-, -demn- to inflict loss upon. * condemn, damnation de- from, down, away, to do the opposite, reverse, against. * detach, deploy, derange, decrease, deodorize, devoid, deflate, degenerate deb- owe. * debit, indebted dec, deca ten, ten times. * decimal, decade, decimate, decathlon dec, dign suitable. * decent decorate dignity dei, div God. * divinity, divine, deity, divination, deify dem, demo people, populace, population. * democracy, demography, demagogue, epidemic dent, dont tooth. * dental, denture, orthodontist, periodontal dens- thick. * condense, density derm skin, covering. * hypodermic, dermatology, epidermis, taxidermy di-, dy- two, twice, double. * divide, diverge, divulge dia through, across, between. * diameter, diagonal, dialogue, dialect, diagnosis, diatribe dic, dict, dit say, speak. * abdicate, benediction, contradict, dictation, edict, indictment, predict, verdict dis, dif not, opposite of, reverse, separate, deprive of, away. * differ, dismiss, disallow, dissuade, disproportion, disrespect, disarray dit give. * credit, audit doc, doct, dog teach, prove. * docile, doctor, doctrine, document, dogma, indoctrinate dom- home. * domicile, dome domin master, that which is under control. * dominate, dominion, predominant, domain don give. * donate, condone dorm sleep. * dormant, dormitory dox thought, opinion, praise. * orthodox, heterodox, paradox, doxology -drome run, step. * syndrome, aerodrome, velodrome du-, dy- two. * dual, duotone, dyad duc, duct to lead, pull. * abduction, conductor, deduce, introduction, product, transducer, viaduct dur, dura hard, lasting. * durable, duration, endure, obdurate dynam power. * dynamic, dynamite, dynasty, hydrodynamics dys- bad, abnormal, difficult, impaired, unfavorable. * dysfunctional, dyslexia, dyspathy e- not, missing, out, fully, away, computer network related. * emit, embed, eternal,ether, erase, email, e-tailer ec- out of, outside. * echo, eclipse, eclectic, ecesis, ecstasy, exzema eco- household, environment, relating to ecology or economy. * ecology, economize, ecospheres, ecomanagement ecto- outside, external. * ectomorph, ectoderm, ectoplasm ed-, es- eat. * edible -ed {v} {v}: past tense. * dressed, faded, patted, closed, introduced -ed {adj} {adj}: having the quality or characteristics of. * winged, moneyed, dogged, tiered ego- self. * egocentric, egotistical em-, empt- buy. * exemption, redeem emul- striving to equal, rivaling. * emulation -en {v} {v}: to cause to become. * lengthen, moisten, sharpen -en {adj} {adj}: material. * golden, woolen, silken en-, em- put into, make, provide with, surround with. * enamor, embolden, enslave, emphasis, empower, entangle -ence, -ency {n}: action or process, quality or state. * reference, emergency, dependence, eminence, latency end- inside, within. * endorse, endoscope, endogenous endo- inside. * endocrine epi- upon, close to, over, after, altered. * epicenter, epilogue, epigone equi- equal. * equidistant, equilateral, equilibrium, equinox, equation, equator -er, -ier {adj}: comparative. * better, brighter, sooner, hotter, happier -er, -or {n} {n}: person or thing that does something. * reporter, player, member, fryer, collector -er, -or {v} {v}: action. * ponder, dishonor, clamor equ-, -iqu- even, level. * equality, equidistant erg work, effect. * energy, erg, allergy, ergophobia err- stray. * aberration, errant, error -ery collective qualities, art, practice, trade, collection, state, condition. * snobbery, bakery, geenery, gallery, slavery -es, -ies {n} {n}: plural of most {n}s ending in -ch, -s, -sh, -o and -z and some in -f and -y. * passes, glasses, ladies, heroes -es, -ies {v} {v}: third person singular present indicative of {v}s that end in -ch, -s, -sh, - and some in -y. * blesses, hushes, fizzes, defies -ess female. * actress, goddess, poetess -est, -iest {adj} or {adv}: superlative. * latest, strongest, luckiest ethn- people, race, tribe, nation. * ethnic, ethnarch eu- well. * euphoria ev-, et- time, age. * medieval, eternal ex- out of, away from, lacking, former. * exit, exhale, exclusive, exceed, explosion, ex-mayor exter-, extra-, extro- outside of, beyond. * external, extrinsic, extraordinary, extrapolate, extrovert extrem- outermost, utmost. * extremity, extremophile fa, fess speak. * fable, fabulous, fame, famous, confess, profess fac, fact, fec, fect, fic, fas, fea do, make. * amplification, confection, difficult, defect, effect, fashion, feasible, manufacture fall, fals deceive. * fallacy, fallacious, falsity, infallibility famili- a close attendant. * family, familiarity fant- to show. * fantasy, fantastic fatu- foolish, useless. * fatuous, infatuation feder- treaty, agreement, contract, league, pact. * confederate, federal, federation fend-, fens- prevent. * defend, offense fer bear, carry. * coniferous, defer, ferry, infertile, odoriferous, refer, transfer, vociferous fic, feign, fain, fit, feat shape, make, fashion. * fiction, faint, feign fid belief, faith. * affidavit, bona fide, confidential, diffident, fidelity, infidel fid, fide, feder faith, trust. * confidante, infidelity, infidel, federal, confederacy, semper fi fig shape, form. * effigy, figure, figment fila, fili thread. * filigree, filament, filter, filibuster fin end, ended, finished. * confine, define, final, finite, finish, refine firm- fix, settle. * confirmation, firmament fix repair, attach. * fix, fixation, fixture, affix, prefix, suffix flex, flect bend. * deflect, flexible, inflexibility, reflect, reflex flict strike. * affliction, conflict, inflict flu, fluc, fluv, flux flow. * influence, fluid, flue, flush, fluctuate, reflux -fold {adv}: in a manner of, marked by. * fourfold, refold, tenfold for, fore before. * forecast, fortune, foresee forc, fort strength, strong. * effort, forte, fortify, fortitude form shape, resemble. * conform, format, formula, perform fract, frag, frai break. * fracture, fragile, fraction, infraction, refract fuge flee. * centrifuge, refuge, subterfuge -ful {n} {n}: an amount or quantity that fills. * mouthful, plentiful -ful {adj} {adj}: having, giving, marked by. * merciful, fanciful fusc- dark. * obfuscation fuse pour. * confuse, transfuse -fy make, form into. * falsify, dandify gam marriage. * bigamy, monogamy, polygamy gastr, gastro stomach. * gastric, gastronomic, gastropod gen {adj} kind. * generous gen {n} birth, race, produce. * antigen, genesis, genetics, eugenics, generate, pathogen geo earth. * geometry, geography, geocentric, geology germ vital part. * germination, germ, germane gest carry, bear. * congest, digest, gestation giga billion. * gigabyte, gigaflop gin careful. * gingerly gloss, glot tongue. * glossary, polyglot, epiglottis glu, glo lump, bond, glue. * glue, agglutinate, conglomerate gor to gather, to bring together. * category, categorize grad, gress, gree to gather, to bring together, step, go. * centigrade, degree, grade, gradient, progress gran- grain. * granary, granular graph, gram, graf write, written, draw. * biography, autograph, grammar, lithograph, photography, telegram grat pleasing. * congratulate, disgrace, gratuity, gracious, gratitude, ingrate grav heavy, weighty. * aggravate, grave, gravitate greg flock, herd. * congregation, gregarious, segregate hab-, -hib-, habit-, -hibit- have. * habit, prohibition hale, heal make whole, sound. * exhale, heal, healthy, inhalation helio sun. * heliograph, heliotrope, heliocentric hema, hemo blood. * hemorrhage, hemoglobin, hemophilia, hemostat her, here, hes stick. * adhere, cohere, cohesion,hereditary, hesitate, inherent hetero other, different. * heterodox, heterogeneous, heterosexual, heterodyne hex- six. * hexagon, hexameter homo same. * homogenize, homosexual, homonym, homophone hum, human earth, ground, man. * humus, exhume, humane hydr, hydra, hydro water. * dehydrate, hydrant, hydraulics, hydrogen hyper- over, above. * hyperactive, hyperbolic, hypersensitive, hyperventilate hypn sleep. * hypnosis, hypnotherapy -ia {n}: names, diseases. * phobia, fibromyalgia -ian, an {n}: related to, one that is. * pedestrian, human -iatry {n}: art of healing. * psychiatry -ic {adj} {adj}: quality, relation. * generic -ic, ics {n} {n}: related to the arts and sciences. * arithmetic, economics -ice {n}: act. * malice -ify {v}: cause. * specify ignis fire. * ignite, igneous, ignition il, in, im, ir not. * illegible, impossible, impregnable, inaction, innocuous, innocent, irresolute -ile {adj}: having the qualities of. * projectile in, im into, on, near, towards. * import, instead infra beneath. * infrared, infrastructure -ing {n} {n}: material made for, activity, result of an activity. * flooring, swimming, building -ing {v} {v}: present participle. * depicting -ing {adj} {adj}: activity. * cohering inter between, among. * international, interject, intermission, internal, intermittent intra within, during, between layers, underneath. * intramural, intranet, intranatal intro into, within, inward. * interoffice, introvert, introspection, introduce -ion {n}: condition or action. * abduction -ish {adj}: having the character of. * newish -ism {n}: doctrine, belief, action or conduct. * professionalism -ist {n}: person or member. * podiatrist -ite {n}: state or quality. * graphite -ity, ty {n}: state or quality. * lucidity, novelty -ive {n} {n}: condition. * native -ive, -ative, -itive {adj} {adj}: having the quality of. * festive, cooperative, sensitive -ize {v}: cause. * fantasize jac, ject throw. * adjective, dejected, eject, interject, projection, trajectory join, junct join. * adjoining, enjoin, juncture, conjunction, injunction judice judge. * prejudice jug, junct, just to join. * junction, adjust, conjugal juven young. * juvenile, rejuvenate juxta- beside, near. * juxtaampullary, juxtapose labor work. * laborious, belabor lau, lav, lot, lut wash. * launder, lavatory, lotion, ablution, dilute lect, leg, lig choose, gather, select, read. * collect, eligible, intellect, legible, predilection, recollection leg law. * legal, legislate, legislature, legitimize -less {adj}: without, missing. * motiveless levi light. * alleviate, levitate, levity lex, leag, leg law. * legal, college, league liber, liver free. * liberty, liberal, liberalize, deliverance lide strike. * collide, nuclide liter letters. * literary, literature, literal, alliteration, obliterate loc, loco place, area. * allocate, location, locality, locomotion log, logo, ology word, study, say, speech, reason, study. * catalog, dialogue, logo, prologue, zoology loqu, locut talk, speak. * colloquial, circumlocution, eloquent, loquacious luc, lum, lun, lus, lust light. * lackluster, luminary, illuminate, illustrate, translucent lude play. * prelude -ly {adv}: in the manner of. * fluently macr-, macer lean. * emaciated, meager magn great. * magnify, magnificent, magnanimous, magnitude main strength, foremost. * domain, mainstream, mainsail, remain mal bad, badly. * dismal, maladjusted, malady, malcontent, malformation, malfunction man, manu hand, make, do. * emancipate, manual, manage, manufacture, manacle, manifest mand hand. * command, mandatory, reprimand mania madness. * mania, maniac, kleptomania, pyromania mar, mari, mer sea, pool. * marine, marsh, maritime, mermaid matri mother. * matrimony, maternal, matriarchate, matron medi half, middle, between, halfway. * mediate, medieval, Mediterranean, mediocre, medium mega great, million. * megaphone, megaton, megabyte, megalopolis mem recall, remember. * memo, commemoration, memento, memoir, memorable ment mind. * mental, mention -ment {n}: condition or result. * document, containment meso middle. * mesomorph, mesoamerica, mesosphere meta beyond, change. * metaphor, metamorphosis, metabolism, metahistorical, metainformation meter measure. * meter, voltammeter, barometer, thermometer metr admeasure, apportion. * metrics, asymmetric, parametric, telemetry micro small, millionth. * microscope, microfilm, microcard, microwave, micrometer, microvolt migra wander. * migrate, emigrant, immigrate mill, kilo thousand. * millennium, kilobyte, kiloton milli thousandth. * millisecond, milligram, millivolt min little, small. * minute, minor, minuscule mis wrong, bad, badly. * misconduct, misinform, misinterpret, misnomer mit, miss send. * admit, emit, remit, submit, intermittent, mission, missile mob, mov, mot move. * motion, remove, mobile, motor mon warn, remind. * monument, admonition, monitor, premonition mono one. * monopoly, monotype, monologue, mononucleosis mor, mort mortal, death. * immortality, mortal, mortician, mortuary, rigor mortis morph shape, form. * amorphous, dimorphic, metamorphosis, morpheme, polymorphic multi many, much. * multilingual, multiply, multitude, multinational nano billionth. * nanosecond, nanobucks nasc, nat, gnant, nai to be born. * nascent, native, pregnant, naive nat, nasc to be from, to spring forth. * innate, natal, native, renaissance neo new. * Neolithic, nuveau riche, neologism, neophyte, neonate -ness {n}: state, condition, quality. * kindness neur nerve. * neuritis, neuropathic, neurologist, neural, neurotic nom law, order. * autonomy, astronomy, gastronomy, economy nom, nomen, nomin, nym name. * antonym, ignominious, nominate, nomenclature, synonym non not. * nonferrous, nonsense, nonabrasive, nondescript nov new. * novel, renovate, novice, nova, innovate nox, noc night. * equinox, nocturnal, noctilucent numer number. * numeral, numeration, enumerate, innumerable numisma coin. * numismatics ob, oc, of, op toward, against, in the way. * oppose, occur, offer, obtain oct eight. * octopus, octagon, octogenarian, octave oligo few, little. * Oligocene, oligosaccharide, oligotrophic, oligarchy omni all, every. * omnipotent, omniscient, omnipresent, omnivorous onym name. * anonymous, pseudonym, antonym, synonym oper work. * operate, cooperate, opus -or {n}: condition or activity. * valor, honor, humor, minor ortho straight, correct. * orthodox, orthodontist, orthopedic, unorthodox -ory {n}: place for, serves for. * territory, rectory -ous, -eous, -ose, -ious {adj}: having the quality of, relating to. * adventurous, courageous, verbose, fractious over excessive, above. * overwork, overall, overwork pac peace. * pacifist, pacify, pacific ocean pair, pare arrange, assemblage, two. * repair, impair, compare, prepare paleo old. * Paleozoic, Paleolithic, paleomagnetism, paleopsychology pan all. * pan-African, panacea, Pandemonium (demons' abode) para beside. * paradox, paraprofessional, paramedic, paraphrase, parachute pat, pass, path feel, suffer. * patient, passion, sympathy, pathology pater, patr father. * patriarch, patriot, patronize path, pathy feeling, suffering. * pathos, sympathy, antipathy, apathy, telepathy ped, pod foot. * antipode, centipede, impede, pedestrian, podiatry, tripod pedo child. * orthopedic, pedagogue, pediatrics pel, pul, puls drive, push, urge. * compel, dispel, expulsion, impulse, repel, propulsion, pulsate pend, pens, pond hang, weigh. * pendant, pendulum, suspend, appendage, pensive, append per through, intensive. * persecute, permit, perspire, perforate, persuade peri around. * periscope, perimeter, perigee, periodontal phage eat. * macrophage, bacteriophage phan, phas, phen, fan, phant, fant show, make visible. * phantom, fantasy phe speak. * blaspheme, cipher, phenomenon, philosopher phil love. * philosopher, philanthropy, philharmonic, bibliophile phlegma inflammation. * phlegm, phlegmatic phobia, phobos fear. * phobia, acrophobia, aquaphobia phon sound. * telephone, phonograph, homophone, microphone, euphonious phot, photo light. * photograph, photoelectric, photogenic, photosynthesis, photon pico trillionth. * picofarad, picocurie, picovolt pict paint, show, draw. * picture, depict plac, plais please. * placid, placebo, placate, complacent pli, ply fold. * reply, implicate, ply plore cry out, wail. * implore, exploration, deploring plu, plur, plus more. * plural, pluralist, plus pneuma, pneumon breath. * pneumatic, pneumonia, pod foot, feet. * podiatry, tripod poli city. * metropolis, police, politics, Indianapolis, megalopolis, acropolis poly many. * polytheist, polygon, polygamy, polymorphous pon, pos, pound place, put. * component, deposit, expound, impose, juxtapose, opponent, posture pop people. * population, populous, popular port carry. * export, portable, support, transport portion part, share. * portion, proportion post after, behind. * postpone, postdate pot power. * potential, potentate, impotent pre, pur before. * precede prehendere seize, grasp. * apprehend, comprehend, comprehensive, prehensile prin, prim, prime first. * primacy, prima donna, primitive, primary, primal, primeval, prince, principal pro for, foward. * propel proto first. * prototype, protocol, protagonist, protozoan, protoindustrial psych mind, soul. * psyche, psychiatry, psychology, psychosis pugn fight. * pugnacious, repugnant punct point, dot. * punctual, punctuation, puncture, acupuncture, punctuation pute think. * dispute, computer quasi- having a likeness to something. * quasicrystals, quasiparticles, quasiperiodic quat, quad four. * quadrangle, quadruplets quint, penta five. * quintet, quintuplets, pentagon, pentane, pentameter quip ship. * equip, equipment quir, quis, quest, quer seek, ask. * acquire, exquisite, inquisitive, require, query, quest quot- how many, how great. * quota, quotient rad-, ras- scrape, shave. * abrade, abrasion radic- root. * eradicate, radical re back, again. * report, realign, retract, revise, regain reg, recti straighten. * regiment, regular, rectify, correct, direct, rectangle retro backwards. * retrovirus, retrospect, retrogression, retroactive ri, ridi, risi laughter. * deride, ridicule, risible rog, roga ask. * prerogative, interrogation, derogatory rupt break. * abrupt, disrupt, interrupt, ruptible, rupture sacr, sanc, secr sacred. * sacred, sacrosanct, sanction, consecrate, desecrate salv, salu safe, healthy. * salvation, salvage, salutation sanct holy. * sanctify, sanctuary, sanction, sanctimonious, sacrosanct sat, satis enough. * satient, saturate, satisfy sci, scio, scientia know. * science, conscious, omniscient, cognocienti scope see, watch. * telescope, microscope, kaleidoscope, periscope, stethoscope scrib, script write. * scribble, inscribe, describe, prescribe, manuscript se apart, move away from. * secede, secret, segregate, secern sect, sec cut. * intersect, transect, dissect, secant, section ses, sex six. * sestet, sextuplets sed, sess, sid sit. * sediment, session, obsession, possess, preside, president, reside, subside semi half, partial. * semifinal, semiconscious, semiannual, semimonthly, semicircle sen, scen old, grow old. * senior, senator, senile, senescence, evanescent sent, sens feel, think. * sentiment, consent, resent, dissent, sentimental, sense, sensation, sensitive, sensory, dissension sequ, secu, sue follow. * consecutive, consequence, ensue, pursue, prosecute, second, sequel, subsequent serv save, serve, keep. * deserve, conservation, observe, reservation, servant, subservient, servitude -ship {n}: status, condition. * relationship, friendship sign, signi sign, mark, seal. * signal, signature, design, insignia, significant simil, simul like, resembling. * similar, assimilate, simulate, simulacrum, simultaneous sist, sta, stit stand, withstand, make up. * assist, insist, persist, circumstance, stamina, status, state, static, stable, stationary, substitute soci to join, companions. * sociable, society sol, solus alone. * isolate, soliloquy, solitaire, solitude solv, solu, solut loosen, explain. * absolve, dissolution, resolve, soluble somn sleep. * insomnia, somnambulist soph wise. * philosophy, sophomore (wise fool), sophisticated spec, spect, spi, spic look, see. * aspect, conspicuous, expect, inspect, prospect, retrospect, specimen, specific, spectator sper render favorable. * prosperous sphere ball, sphere. * hemisphere, stratosphere, spheroid spir breath. * aspire, expire, inspire, respiration, spirit stand, stant, stab, stat, stan, sti, sta, st, stead stand. * stature, establish, stance -ster person. * mobster, monster, prankster strain, strict, string, stige bind, pull, draw tight. * stringent, strict, restrict, constrict, restrain, boa constrictor stru, struct, stroy, stry build. * construe, structure, construct, instruct, obstruct, destruction, destroy, industry, ministry sub, suc, suf, sup, sur, sus under, below, from, secretly, instead of. * sustain, survive, support, suffice, submerge, substandard, subnormal, subscript sume, sump take, use, waste. * consume, assume, sump, presumption super, supra over, above. * superior, superscript, supernatural, superimpose, supercede syn, sym together, at the same time. * sympathy, synthesis, synchronous, syndicate tact, tang, tag, tig, ting touch. * tactile, contact, intact, intangible, tangible, contagious, contiguous, contingent tain, ten, tent, tin hold, keep, have. * retain, continue, content, tenacious tect, teg cover. * detect, protect, tegular, tegument tele distance, far, from afar. * telephone, telegraph, telegram, telescope, television, telephoto, telecast, telepathy, telepathy tem, tempo time. * tempo, temporary, extemporaneously, contemporary, pro tem, temporal ten, tin, tain hold. * tenacious, tenant, tenure, untenable, detention, retentive, content, pertinent, continent, obstinate, contain, abstain, pertain, detain tend, tent, tens stretch, strain. * tendency, extend, intend, contend, pretend, superintend, tender, extent, tension, pretense tera trillion. * terabyte, teraflop term end, boundary, limit. * exterminate, terminal terr, terra earth. * terrain, terrarium, territory, terrestrial test to bear witness. * testament, detest, testimony, attest, testify the, theo God, a god. * monotheism, polytheism, atheism, theology therm heat. * thermometer, theorem, thermal, thermos bottle, thermostat, hypothermia thesis, thet place, put. * antithesis, hypothesis, synthesis, epithet tire draw, pull. * attire, retire, entire tom cut. * atom (not cutable), appendectomy, tonsillectomy, dichotomy, anatomy tor, tors, tort twist. * torture, retort, extort, distort, contort, torsion, tortuous, torturous tox poison. * toxic, intoxicate, antitoxin tract, tra, trai, treat drag, draw, pull. * attract, tractor, traction, extract, retract, protract, detract, subtract, contract, intractable trans across, beyond, change. * transform, transoceanic, transmit, transportation, transducer tri three. * tripod, triangle, trinity, trilateral trib pay, bestow. * tribute, contribute, attribute, retribution, tributary tribute give. * contribute, distribute, tributary turbo disturb. * turbulent, disturb, turbid, turmoil typ print. * type, prototype, typical, typography, typewriter, typology, typify ultima last. * ultimate, ultimatum umber, umbraticum shadow. * umbra, penumbra, (take) umbrage, adumbrate un not, against, opposite. * unceasing, unequal uni one. * uniform, unilateral, universal, unity, unanimous, unite, unison, unicorn -ure {n}: act, condition, process, function. * exposure, conjecture, measure vac empty. * vacate, vacuum, evacuate, vacation, vacant, vacuous vade go. * evade, invader vale, vali, valu strength, worth. * equivalent, valiant, validity, evaluate, value, valor veh, vect to carry. * vector, vehicle, convection, vehement ven, vent come. * convene, intervene, venue, convenient, avenue, circumvent, invent, convent, venture, event, advent, prevent ver, veri true. * very, aver, verdict, verity, verify, verisimilitude verb, verv word. * verify, veracity, verbalize, verve vert, vers turn, change. * convert, revert, advertise, versatile, vertigo, invert, reversion, extravert, introvert, diversion, introvert, convertible, reverse, controversy vi way. * viable, vibrate, vibrant vic, vicis change, substitute. * vicarious, vicar, vicissitude vict, vinc conquer. * victor, evict, convict, convince, invincible vid, vis see. * video, evident, provide, providence, visible, revise, supervise, vista, visit, vision, review, indivisible viv, vita, vivi alive, life. * revive, survive, vivid, vivacious, vitality, vivisection, vital, vitamins, revitalize voc, voke call. * vocation, avocation, convocation, invocation, evoke, provoke, revoke, advocate, provocative, vocal vol will. * malevolent, benevolent, volunteer, volition volcan fire. * volcano, vulcanize, Vulcan volv, volt, vol turn about, roll. * revolve, voluble, voluminous, convolution, revolt, evolution vor eat greedily. * voracious, carnivorous, herbivorous, omnivorous, devour -ward {adv}: in a direction or manner. * homeward -wise {adv}: in the manner of, with regard to. * timewise, clockwise, bitwise with against. * withhold, without, withdraw, forthwith xen- foreign. * axenic, xenia, xenophobia -y {n}: state, condition, result of an activity. * society, victory -y {adj}: marked by, having. * hungry, angry, smeary, teary zo animal. * zoo (zoological garden), zoology, zodiac, protozoan