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SAT Prefixes/Roots
Prefixes and Roots needed for SAT
| Question | Answer |
|---|---|
| a, ab, abs | away, from, not; ex- absent, abnormal |
| ad, ac, af, ag | to, together, forward; ex- adhere, accord, affect |
| ante | before, earlier in time; antecedent |
| anti | against; antidote, antisocial |
| arch | first, original, chief; arch enemy, archetype |
| bi, bis | two; biped, bisect |
| circ, circum | around; circle, circumference |
| com, con | together, with; combine, convene |
| contra, contro | against, opposed; contradict, controversy |
| de | down, not, opposite to; degrade, demerit |
| di, dif, dis | apart, not; divide, differ, distract |
| epi | upon, above; epicenter, epitome |
| eu | true, honest; euphoninous, eulogy |
| equi | equal, even; equality, equiable |
| ex, ej | out, from; eject, exit, expel, exorcist |
| hyper | above, over; hyperactive, hyperbole |
| hypo | under, below; hypodermic, hypotonic |
| in | in, into, within; inject, insight, inside |
| in, ir | not; incredible, irregular |
| ill | not; illicit |
| mal, male | bad, ill; malady, malevolent |
| mega | large; megabyte, megalith |
| mis | wrong, bad; mistake, misplace |
| mono | one, single; monologue, monotone |
| non | not; nonplused, nonsense |
| ob | block, against; obstruct, object |
| omni | all, always; omnipotent, omnibus |
| per | by means of; persist, perceive |
| peri | around; periscope, perimeter |
| poly | many, a lot; polygon, polygraph |
| post | after, later; postdate, postpone |
| pre | before, prior to; predict, preface |
| pro | go forward, support; proceed, promote |
| re | to do again, repeat; recall, return |
| retro | backward; retrograde, retrospect |
| semi | half, part; semiconscious |
| sub | below, under; submerge, subway |
| syn, sym | together, with; synchronize, symbiotic |
| super | greater, above; superior, supervisor |
| trans | to send, to move; transmit, transfer |
| un | not; unclear, untie |
| uni | one, singular; unit, unilateral |
| act | to do, movement; action, active |
| auto | self, oneself; autobiography |
| bas | below, under; basement, basic |
| belli | agressive, warlike; bellicose, belligerent |
| bene | good; benefactor, benevolent |
| ced, cess | go, give in; concede, recession |
| cred | believable; credence, credible |
| dic, dict | to speak; dictate, diction |
| equ | equal, even; equally, equator |
| fac, fact | make, do; facilitate, factor |
| fin | end, limit; finish, finite, final |
| graph | write, etch; monograph, graphics |
| log, ology | word, study of; monologue, biology |
| mitt, miss | to send; transmit, missive |
| neo, novo | new; novice, neophyte |
| par | equal; parity, parallel |
| phon | sound; phonetic, euphonious |
| scrib, script | write; prescribe, manuscript |
| sed | to sit still, below; sedentary, sediment |
| sequ, secu | to follow; sequel, consecutive |
| spec, spect | see; spectacular, spectator, spector |
| sto, stat | stand still, storage, statue |
| tac, tact, ten | touch, feel, grasp; contact, tactile, tenacious |
| veri | true, truth; verify, verisimilitude |