Prefix | Meaning | Examples |
a | in, on, of, up, to | abed, afoot |
a | without, lacking | atheist, agnostic |
ab | from, away, off | abdicate, abjure |
ad | to, toward | advance |
am | friend, love | amicable, amatory |
ante | before, previous | antecedent, antedate |
anti | against, opposing | antipathy, antidote |
auto | self | autonomy, autobiography |
belli | war, warlike | bellicose |
bene | well, good | benefit, benefactor |
bi | two | bisect, biennial |
bio | life | biology, biosphere |
cata | down, away, thoroughly | catastrophe, cataclysm |
chron | time | chronometer, synchronize |
circum | around | circumspect, circumference |
com | with, together, very | commotion, complicate |
contra | against, opposing | contradict, contravene |
cred | belief, trust | credible, credit |
de | from | depart |
dem | people | demographics, democracy |
dia | through, across, apart | diameter, diagnose |
dis | away, off, down, not | dissent, disappear |
epi | upon | epilogue |
equi | equal, equally | equivalent |
ex | out | extract |
for | away, off, from | forget, forswear |
fore | before, previous | foretell, forefathers |
homo | same, equal | homogenized |
hyper | excessive, over | hypercritical, hypertension |
hypo | under, beneath | hypodermic, hypothesis |
in | in, into | intrude, invade |
in | not, opposing | incapable, ineligible |
inter | among, between | intercede, interrupt |
intra | within | intramural, intrastate |
magn | large | magnitude, magnify |
mal | bad, poorly, not | malfunction |
micr | small | microbe, microscope |
mis | bad, poorly, not | misspell, misfire |
mono | one, single | monogomy, monologue |
mor | die, death | mortality, mortuary |
neo | new | neolithic, neoconservative |
non | not | nonentity, nonsense |
ob | against, opposing | objection |
omni | all, everywhere | omniscient |
ortho | right, straight | orthogonal, orthodox |
over | above | overbearing |
pan | all, entire | panorama, pandemonium |
para | beside, beyond | parallel, paradox |
per | through | perceive, permit |
peri | around | periscope, perimeter |
phil | love, like | philosophy, philanthropic |
poly | many | polymorphous, polygamous |
post | after, following | postpone, postscript |
pre | before, previous | prevent, preclude |
prim | first, early | primitive, primary |
pro | forward, in place of | propel, pronoun |
re | back, backward, again | revoke, recur |
retro | back, backward | retrospect, retrograde |
semi | half, partly | semicircle, semicolon |
sub | under, beneath | subjugate, substitute |
super | above, extra | supersede, supernumerary |
sym | with, together | sympathy, symphony |
trans | across, beyond, over | transact, transport |
ultra | beyond, excessively | ultramodern, ultrasonic, ultraviolet |
un | not, reverse of | unhappy, unlock |
uni | one | uniform, unity |
vis | to see | visage, visable |