ACT Common Root Words
Order by
154 terms
Terms | Definitions |
|---|---|
 acro | top, height, tip |
| aer, aero | air |
| aesth, esth | beauty |
| agr, agri, agro | farm |
| alg, algo | pain |
| ambi, amphi | both |
| ambul | move |
| ami, amo | love |
| andr, andro | male |
| anim | spirit, life |
| ann, enn | year |
| anth, antho | flower |
| anthrop, anthropo | human |
| apo, apho | away, separate |
| aqu, aqua | water |
| arbor | tree |
| arch | most important |
| archa, archae, archi | ancient |
| art | skill |
| arthr, arthro | joint |
| aster, astr | star |
| act | to do |
| audi | to hear |
| avi | bird |
| bar, baro | pressure |
| bell, belli | war |
| bene | good |
| bibli | book |
| bio | life |
| blast | cell |
| capt, cept | capture, hold |
| cardi, cardio | heart |
| carn, carni | flesh |
| caust, caut | burn |
| cede, ceed | yield |
| ceive, cept | take |
| celer | fast |
| cent, centi | hundred |
| centr, centro | center |
| cephal, cephalo | head |
| chrom, chromo, chromat, chromato | color |
| cide, cise | cut |
| circle, circum | around |
| claim, clam | speak |
| cline | lean |
| cogn, cogni | learn |
| cred | believe |
| crypto | hidden |
| cycl | circle |
| dem, demo | people |
| dendr, dendri, dendro | tree |
| dent, dont | tooth |
| derm, derma | skin |
| dic, dict | speak |
| domin | master |
| don, donat | give |
| duc, duct | lead |
| dyn, dyna, dynam | power |
| ego | self |
| endo | inside |
| equ, equi | equal |
| fer | carry |
| flect | bend |
| flor, flora, fleur | flower |
| fract, frag | break |
| fug | escape |
| gastr, gastro | stomach |
| gen, gene, geno | birth |
| geo | earth |
| ger | old age |
| gram | written |
| gyn | female |
| helic, helico | spiral |
| heli, helio | sun |
| hem, hema, hemo | blood |
| herbi | plant |
| hetero | other |
| homeo, homo | same |
| hydr, hydro | water |
| imag | likeness |
| iso | equal |
| ject | throw |
| jud, jur, just | law |
| junct | join |
| juven | young |
| kine, kinet | motion |
| lab | work |
| later | side |
| liber | free |
| lingu | language |
| loc | place |
| locu, loqu | speak |
| log, logo | word |
| luc, lumin | light |
| lun, luna, lumi | moon |
| mal, male | bad |
| mand | order |
| mania | madness |
| manu | hand |
| mar, mari | sea |
| mater, matr, matri | mother |
| meter | measure |
| migr | move |
| morph | form |
| mort | death |
| narr | tell |
| nat | born |
| necr, necro | dead |
| neg | no |
| nom, nomin | name |
| noun, nunc | declare |
| numer | number |
| ocu, op, opt | eye |
| op, oper | work |
| ortho | straight |
| pale, paleo | ancient |
| pater, patr, patri | father |
| path | feeling |
| ped, pede, pedi, pod | foot, child |
| phag, phage | eat |
| phil | friend, love |
| phon, phono | sound |
| phot, photo | light |
| phys | body, nature |
| pop | people |
| pseud, pseudo | false |
| psych, psycho | mind |
| pugn, pugna | fight |
| purg | clean |
| pyr, pyro | fire |
| rid | laugh |
| rupt | burst |
| scend | climb |
| sci | know |
| scrib, script | write |
| sect | cut |
| serv | keep |
| sol | alone, sun |
| spec, spect, spic | see |
| sphere | ball |
| spir | breathe |
| stell | star |
| techno | skill |
| tel, tele, telo | far |
| tele | far away |
| temp, tempo | time |
| term, termin | end |
| ter, terr, terra | earth |
| the, theo | god |
| therm, thermo | heat |
| urb | city |
| vac | empty |
| verb | word |
| vid, vis | to see |
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