ambi-: both, two
an, a-: without
ante, -: before
anti-: against, opposite
circum-: around
con, com, col, cor-: with, together
contra, contro-: against
de-: down, away (debase, decadence)
demi-: partly, half
di-: two (dichotomy, dilemma)
dia-: across (diagonal, diameter, diameter, dialogue)
dis, diff-: not, apart (discord, differ, diffuse)
ex, e-: out
extra, extro-: beyond, outside
hyper-: above, excessively (hyperbole, hyperventilate)
hypo-: beneath, lower (hypoglycemia, hypothesis, hypocrite, hypodermic)
in, im, il, ir-: not
in, im, il, ir-: in, on, upon
inter-: between, among,
intra, intro-: within ( intramural, introvert)
macro-: large, long (macrobiotic, macrocosm, macroscopic)
micro-: small (microcosm, microscopic)
mis-: bad, improper (misdemeanor, mischance)
mis-: hatred (misanthrope, misogynist)
mono-: one (monarchy, monotheism)
multi-: many (multifarious, multitudinous)
neo-: new (neologism, neophyte)
para-: beyond, related (parallel, paraphrase)
per-: through, completely (permeable, pervade, permanent)
poly-: many (polyglot, polygamy)
post-: after (posthumous, postwar, preposterous)
pre-: before (preamble, premonition, premature)
pro-: forward, in favor of (proponent, propulsive, prodemocracy, pro-and-con)
re-: again, back
retro-: backward (retrospect, retroactive)
se-: away, aside (secede, seclude)