bi-
Ex: bisect, biennial - Answers two
mono-
Ex: monogamy, monologue - Answers one, single
poly-
Ex: polymorphous, polygamous - Answers many
semi-
Ex: semicircle, semicolon - Answers half, partly
uni-
Ex: uniform, unity - Answers one
a-
Ex: abed, afoot - Answers in, on, of, up, to
ab-
Ex: abdicate, abjure - Answers from, away, off
ad-
Ex: advance, adventure - Answers to, toward
ante-
Ex: antecedent, antedate - Answers before, previous
anti-
Ex: antipathy, antidote - Answers against, opposing
cata-
Ex: catastrophe, cataclysm - Answers down, away, thoroughly
circum-
Ex: circumspect, circumference - Answers around
, com-
Ex: commotion, complicate - Answers with, together, very
contra-
Ex: contradict, contravene - Answers against, opposing
de-
Ex: depart - Answers from
dia-
Ex: diameter, diagnose - Answers through, across, apart
dis-
Ex: dissent, disappear - Answers away, off, down, not
epi-
Ex: epilogue - Answers upon
ex-
Ex: extract, excerpt - Answers out
hypo-
Ex: hypodermic, hypothesis - Answers under, beneath
inter-
Ex: intercede, interrupt - Answers among, between
intra-
Ex: intramural, intrastate - Answers within
ob-
Ex: objection - Answers against, opposing
per-
Ex: perceive, permit - Answers through
peri-