SAT Common Prefixes, Suffixes, & Roots

ad-

to, toward (e.g., advance)

com-

together, with (e.g., composite)

de-

away, from (e.g., deter)

epi-

upon (e.g., epilogue)

ex-

out of (e.g., expel)

homo-

same, equal, like (e.g., homogenized)

hyper-

over, too much (e.g., hyperactive)

hypo-

under, too little (e.g., hypodermic)

in- (1)

not (e.g., insufficient)

in- (2)

into (e.g., instruct)

inter-

between (e.g., interstate)

mal-

bad (e.g., malfunction)

mono-

alone, one (e.g., monolith)

ob-

against (e.g., objection)

omni-

all, everywhere (e.g., omniscient)

poly-

many (e.g., polymorphous)

pro-

forward (e.g., propel)

retro-

backward (e.g., retrograde)

sub-

under (e.g., submarine)

trans-

across, beyond (e.g., transcend)

un-

not (e.g., unneeded)

arch

to rule (e.g., monarch)

belli

war, warlike (e.g., belligerent)

bene

good (e.g., benevolent)

chron

time (e.g., chronology)

dic

to say (e.g., indicative)

fac

to make, to do (e.g., artifact)

graph

writing (e.g., telegraph)

mort

to die (e.g., mortal)

port

to carry (e.g., deport)