a-

(atheist, agnostic)

ab-

(abdicate, abjure)

ad-

(advance)

am-

(amicable, amatory)

ante-

(antecedent, antedate)

anti-

(antipathy, antidote)

auto-

(autonomy, autobiography)

belli-

(bellicose)

bene-

(benefit, benefactor)

bi-

(bisect, biennial)

bio-

(biology, biosphere)

cata-

(catastrophe, cataclysm)

chron-

(chronometer, synchronize)

circum-

(circumspect, circumference)

com-

(commotion, complicate)

contra-

(contradict, contravene)

cred-

(credible, credit)

de-

(depart)

dem-

(demographics, democracy)

dia-

(diameter, diagnose)

dis-

(dissent, disappear)

epi-

(epilogue)

equi-

(equivalent)

ex-

(extract)

for-

(forget, forswear)

fore-

(foretell, forefathers)

homo-

(homogenized)

hyper-

(hypercritical, hypertension)

hypo-

(hypodermic, hypertension)

in-

(intrude, invade)

inter-

(intercede, interrupt)

intra-

(intramural, intrastate)

magn-

(magnitude, magnify)

mal-

(malfunction)

micr-

(microbe, microscope)

mis-

(misspell, misfire)

mono-

(monogamy, monologue)

mor-

(mortality, mortuary)

neo-

(neolithic, neoconservative)

non-

(nonentity, nonsense)

ob-

(objection)

omni-

(omniscient)

ortho-

(orthogonal, orthodox)

over-

(overbearing)

pan-

(panorama, pandemonium)

para-

(parallel, paradox)

per-

(perceive, permit)

peri-

(pericope, perimeter)

phil-

(philosophy, philanthropic)

poly-

(polymorphous, polygamous)

post-

(postpone, postscript)

pre-

(prevent, preclude)

prim-

(primitive, primary)

pro-

(propel, pronoun)

re-

(revoke, recur)

retro-

(retrospect, retrograde)

semi-

(semicircle, semicolon)

sub-

(subjugate, substitute)

super-

(supersede, supernumerary)

sym-

(sympathy, symphony)

trans-

(transact, transport)

ultra-

(ultramodern, ultrasonic, ultraviolet)

un-

(unhappy, unlock)

uni-

(uniform, unity)

vis-

(visage, visible)