- -a: plural
- -ar: relating to
- -be: life
- -i: plural
- a: not
- ab: away
- abjure: renounce
- abrogate: annul
- acr: sharp
- acro: high
- acronym: initials-name
- acrophobia: fear of heights
- act: to do
- ad: to
- aden: gland
- adherent: supporter
- advocate: speak for
- aer: air
- ag: to do
- agog: leader
- agoraphobia: fear of openness
- alb: white
- algia: pain
- alt: high
- alter: other
- alumni: graduates
- amat: love
- ambul: walk
- amorphous: shapeless
- amour-propre: self-love
- amphi: both
- an-: without
- analgesic: pain-killer
- anarchist: one against government
- andro: man
- androgynous: masculine or feminine
- android: robot
- Anglo: English
- anim: mind
- animadversion: criticism
- ann: year
- anomaly: abnormality
- ante: before
- antediluvian: from before the Flood!
- antho: flower
- anthology: literary collection
- anthropo: man
- anthropoid: manlike
- anthropomorphic: man-shaped
- anti: against
- apo: away or up
- apotheosis: raising to god status
- apt: fit
- aqua: water
- archy: government
- ard: always
- arthro: joint
- ase: enzyme
- astr: star
- ate: cause
- atmo: vapor
- atom: vapor
- audi: hear
- audiophile: stereo buff
- aur: gold
- austro: south
- auto: self
- baro: pressure
- bas: low
- bath: deep
- bell: war
- bellicose: warlike
- belligerant: warring
- bene: good
- benediction: blessing
- benefactor: helper
- bi: two
- biblio: book
- bilateral: two-sided
- bio: life
- blasto: embryo
- bon: good
- bon vivant: indulger in luxury
- bona fide: good faith
- bonhomie: good-naturedness
- bootless: useless
- brachio: arm
- brachy: short
- branchio: gills
- brev: short
- caco: bad
- cacophony: bad noise
- cad: fall
- calli: beautiful
- calor: heat
- cant: sing
- cap: take
- capit: head
- captious: fault-finding
- cardio: heart
- cardiovascular: of the heart and vessels
- carn: flesh
- carnage: butchery
- casus belli: cause of war
- cata: down
- caust: burn
- caustic: burning
- cede: go
- cent: one hundred
- centri: center
- cephalo: head
- chiro: hand
- chiromancy: palm reading
- chlor: green
- chrom: color
- chron: time
- chronic: lasting
- chronicle: a history
- cide: kill
- circum: around
- circumlocution: talking in circles
- circumscribed: limited
- circumspect: cautious
- circumvent: get around
- cirr: hair
- cise: cut
- clam: cry out
- cle: small
- clud: close
- co: together
- cogn: know
- cognizant: aware
- cognomen: nickname
- cognoscenti: those who know
- collateral: side by side
- colloquy: conversation
- com: together
- commensurate: of like measure
- comport: behave
- con: together
- condescend: lower oneself
- condign: worthy
- confluence: a flowing together
- congetial: at birth
- contra: against
- convivial: jovial, festive
- cor: heart
- coron: crown
- corp: body
- corpulent: full-bodied
- cosmo: world or universe
- cosmology: study of the universe
- counter: against
- cracy: government
- cranio: skull
- cred: believe
- credible: believable
- crypt: hidden
- cryptic: having hidden meaning
- cryptologist: code breaker
- culp: blame
- cumu: heaped
- cur: care for
- curr: run
- curs: run
- cyan: blue
- cyclo: circle
- cyt: cell
- dactylo: finger
- de: down
- dec: ten
- decadent: downfallen
- deduction: reasoning down from principles
- delinate: to outline
- demagogue: corrupt politician
- demi: half
- demo: people
- dendr: tree
- depose: topple from power
- derm: skin
- dextro: right or clockwise
- di: two
- dia: across
- diaphanous: semitransparent
- diatribe: abusive criticism
- dicho: in two pairs
- dichotomy: two part division
- dict: say
- diction: word choice
- diffident: shy
- digit: finger
- dign: worthy
- diplo: double
- dis: away
- disconsolate: inconsolable
- discursive: rambling
- disingenuous: insincere
- disputatious: argumentative
- dissonant: inharmonious
- dom: rule
- dorm: sleep
- dors: back
- dox: opinion
- duct: lead
- dyna: power
- dys: bad
- eccentricity: oddness
- eco: house
- ecto: outer
- ef: out
- effusion: outpouring
- ego: I
- egocentric: self-centered
- egomania: self-obsession
- egregrarious: blatant
- elucidate: explain
- emia: blood
- emissary: messenger
- emollient: softener
- endo: within
- enter: intestine
- entomology: insect zoology
- enumerate: to list
- epi: on
- epigram: witty comment
- epiphany: revelation
- equi: equal
- equivocate: to hedge
- erg: work
- err: wander
- erythro: red
- ess: female
- ethno: race or culture
- ethnocentrism: racial or cultural prejudice
- eu: good
- eulogy: words of praise
- euphenism: pleasent name
- euphony: beautiful sound
- euphoria: joy
- ex: out
- excoriate: verbally flog
- exculpate: free from blame
- exo: out
- exorbitant: unreasonable
- expatriate: banish
- expeditiously: rapidly
- extra: beyond
- fer: carry
- ferro: iron
- fic: make
- fid: faith
- fidelity: faithfulness
- fil: thread
- filigree: lacy design
- fin: end
- fiss: split
- flect: bend
- flu: flow
- foli: leaf
- fore: front
- form: shape
- fort: strong
- fract: break
- fractious: uruly
- frat: brother
- fug: flee
- fus: pour
- fy: make
- gamy: marriage
- gastro: stomach
- gen: origin
- geo: earth
- germ: vital or related
- germane: related
- gerontocracy: government of the old
- gest: carry
- glott: tongue
- glyc: sweet
- gno: know
- gon: angle
- grade: step
- gram: writing
- graph: write
- grat: pleasing
- grav: heavy
- greg: group
- gregarious: sociable
- gress: step
- gymno: naked
- gyn: woman
- gyro: turn
- hagiocracy: government of saints
- haplo: single or simple
- hedron: sided object
- helio: sun
- heliotropic: sun-following
- hema: blood
- hemi: half
- hemiplegia: paralysis on one side
- hemo: blood
- here: stick
- hetero: different
- hexa: six
- hibern: winter
- hippo: horse
- hist: tissue
- histology: study of living tissues
- holo: whole
- homo: same
- hum: earth
- hydro: water
- hyper: over
- hyperbole: overstatement
- hypo: under
- ichtyoligist: fish-scientist
- ician: specialist
- ics: art
- icthy: fish
- ideo: idea
- idio: peculiar
- idiosyncrasy: peculiarity
- ign: fire
- il: not
- im: not
- impending: overhanging
- improvident: without foresight
- impute: attribute discredit
- in: in or not
- in loco parentis: in place of parents
- inanimate: lifeless
- incisive: sharp
- incredulous: not believing
- induction: factual reasoning
- ine: nature
- inexorable: inescapable
- infidel: unbeliever
- infra: beneath
- infraction: breaking
- ingenuous: innocent and naive
- inherent: built-in
- insurgence: uprising
- intansigent: not compromising
- inter: between
- intercede: mediate
- interregnum: time between rulers
- intervene: come between
- intra: within
- intracranial: within the skull
- intractable: stubborn
- intro: into
- introspective: inward looking
- invective: bitter denunciation
- invidious: causing envy
- irrevocable: beyond recall
- ish: like
- ism: doctrine
- iso: equal
- isosceles: having two equal sides
- ist: one who
- itis: inflammation
- ium: an element
- ize: make
- ject: throw
- joie de vivre: joy of living
- junct: join
- jur: swear
- jus: law
- kilo: thousand
- kin: motion
- kleptomaniac: pathological theif
- labor: work
- lachry: tear
- lat: side
- leg: read
- lent: full of
- lepsy: attack
- less: without
- let: little
- leuko: white
- liber: free
- lign: wood
- lin: line
- lingu: tongue
- lite: mineral or fossil
- liter: letter
- lith: rock
- loco: place
- log: word or reason
- logy: science
- loqu: talk
- loquacious: talkitive
- luc: light
- lum: light
- luminary: enlightening person
- luna: moon
- lys: break down
- macro: large
- magn: great
- magnanimous: great-minded
- magnate: powerful person
- magniloquence: great eloquence
- magnum opus: greatwork
- mal: bad
- malediction: a curse
- malevolence: evil intent
- man: hand
- mania: madness
- mar: sea
- matri: mother
- medi: middle
- mega: large
- megalomania: delusions of greatness
- mel: song
- mela: black
- melancholy: dark sadness
- mem: remember
- mens: measure
- meso: middle
- meta: city
- metamorphosis: change of shape
- meteor: high
- meter: measure
- micro: small
- migr: wander
- milli: thousandth
- mir: wonder
- mis: bad
- misanthropist: people-hater
- miss: send
- mob: move
- mobocracy: mob rule
- moll: soft
- mollify: make soft
- monger: seller
- mono: one
- monomania: obsession with one thing
- mont: mountain
- mony: condition
- moribund: dying
- morph: shape
- mort: death
- mot: move
- multi: many
- mund: world
- mundane: worldly
- muta: change
- mutable: changeable
- myo: muscle
- myria: many
- nano: billionth
- narco: sleep
- narcolepsy: attacks of sleep
- nat: born
- nav: ship
- necro: death
- neo: new
- neologism: new-word
- neophyte: beginner
- nesia: island
- ness: quality
- neuro: nerve
- nihilism: belief in nothing
- nomy: law
- non: not
- nondescript: of no category
- nounce: tell
- nov: new
- nuc: center
- numer: number
- nym: name
- ob: against
- octa: eight
- octagenarian: an eighty-year-old
- ocul: eye
- oid: appearance
- oligarchy: government by few
- oligo: few or small
- oma: tumor
- omni: all
- omnifarious: of all kinds
- omniscient: all-knowing
- oo: egg
- opia: sight
- opthal: eye
- orb: circle
- ornith: bird
- ortho: straight
- oscu: mouth
- ose: sugar
- osis: condition
- oss: bone
- osteo: bone
- ous: full of
- ovi: egg
- pac: peace
- paleo: old
- pan: all
- pandemonium: demonic clamor
- panegyric: elaborate eulogy
- par: equal
- para: beside, near
- paradigm: model
- parl: speak
- pater: father
- path: feeling
- patho: disease
- pathogen: disease-causer
- pathological: diseased
- ped: foot or child
- pedagogue: teacher
- pellucid: crystal clear
- pend: hang
- penta: five
- per: through
- perfidious: treacherous
- peri: near or around
- perihelion: orbital point nearest the sun
- perspicacity: insight
- perspiuous: brilliantly clear
- petr: rock
- petroglyph: rock carving
- phag: eat
- phan: appearance
- phasia: speech
- phen: appearance
- philanthropy: love of mankind
- phile: love
- phobia: fear
- phon: sound
- phor: carry
- phos: light
- photo: light
- phsych: soul
- phyll: leaf
- phylo: kind
- phyt: plant
- pico: trillionth
- pithec: ape
- plasm: form
- plasto: molded
- platitude: flat trite remark
- platy: flat
- pleo: more
- plu: more
- plutocracy: government of the wealthy
- pnuemo: lung
- pod: feet
- polis: city
- poly: many
- polychrome: many-colored
- polyglot: multi-linguist
- polyphonic: multi-melodic
- pond: weight
- ponderous: weighty
- pop: people
- port: carry
- pos: put
- post: after
- posthumous: after death
- pot: drink
- potent: power
- pre: before
- preclude: foreclose
- precursor: forerunner
- preponderance: bulk
- prescience: foreknowledge
- prestidigitation: slight of hand
- prim: first
- primate: monkeys, apes, humans
- primeval: of the first ages
- pro: forward
- prognosis: medical forecast
- prolific: productive
- protero: early
- proto: first
- prototype: first model
- psuedo: false
- pter: wing
- pugn: fight
- pugnacious: combative
- pulse: drive
- punct: point
- punctilious: precise in conduct
- pussillanimous: small-minded
- put: think
- pyro: fire
- quadr: four
- quasi: somewhat
- quin: five
- radi: ray
- rat: think
- re: again
- recant: retract
- rect: right
- rectify: correct
- rectilinear: right-angled
- refractory: stubborn
- reg: rule
- renovate: restore
- resurgeance: rising again
- retribution: revenge
- retro: backward
- retrograde: backward
- revoke: cancel
- rhiz: root
- rhodo: rose
- rid: laugh
- rogat: ask
- rub: red
- rubicund: red
- rupt: break
- Russophobe: one who fears Russia
- sacro: holy
- sacrosanct: sacred
- sanct: holy
- sanctimonious: affectedly holy
- sanction: authorize
- sangui: blood
- sanguinary: bloody
- sapro: rotten
- sat: enough
- saturnine: gloomy and remote
- saur: lizard
- schism: division
- schizo: divide
- sci: know
- scope: look
- scrib: write
- se: apart
- sect: cut
- sed: sit
- sedentary: sitting
- semi: half
- sen: old
- sens: feel
- sept: seven
- sequ: follow
- sess: sit
- sine: without
- sine qua non: essential element
- sinecure: an easy lucrative job
- sis: condition
- socio: society
- sol: alone
- sol: sun
- soliloquy: speech to oneself
- solv: loosen
- som: body
- somn: sleep
- somnambulist: sleepwalker
- somniferous: bringing sleep
- son: sound
- sonorous: full-sounding
- soph: wisdom
- soror: sister
- spec: look
- specious: false
- spir: breath
- spor: seed
- sta: stop
- status quo: the present state
- stell: star
- stereo: solid
- strat: layer
- string: bind
- stringent: binding
- struct: build
- sub: under
- subordinate: lower
- subterfuge: evasive dodge
- super: over
- supercilious: scornful
- superfluos: unnecessary
- supersede: replace
- sur: over
- surfeit: excess
- surg: rise
- sym: together
- syn: together
- syndrome: complex of symptoms
- synopsis: summary
- synthesis: combination
- tachy: quick
- tact: touch
- tang: touch
- tangible: touchable
- taxis: arrangement
- tele: far
- tempor: time
- temporize: delay
- terr: land
- terra firma: solid ground
- tetra: four
- theo: god
- thermo: heat
- tion: act or state
- tomy: cut
- topo: place
- tort: twist
- tortuos: twisting
- tox: poison
- tract: pull
- tractable: docile
- trans: across
- transpose: switch
- tri: three
- trib: pay
- trich: hair
- troph: nourishment
- tropo: turn
- tude: state of
- ultima: last
- ultra: beyond
- un: not
- und: wave
- unequivocal: direct
- uni: one
- unilateral: one-sided
- urb: city
- urbane: sophisticated
- vac: empty
- val: worth
- vas: vessel
- vect: carry
- ven: come
- ventri: belly
- ver: true
- veracity: truthfulness
- verisimilitude: similarity to truth
- vermi: worm
- vert: turn
- vest: clothes
- via: road
- viable: able to live
- vice: in place of
- vid: look
- vita: life
- viv: life
- vivacious: lively
- voc: voice
- vociferous: loudly-voiced
- vol: will
- volv: roll
- vore: eating
- xeno: stranger
- xenophobia: fear of foreigners
- xylo: wood
- zo (or zoa): animal
- zygo: yolk
- zym: ferment