a-, an-
without, not, lack of
ab-
away from
ad-
to, toward, near
ante-
before, forward, in front of
anti-
against
auto-
self
bi-
double, two, twice
brady-
slow
circum-
around
contra-
against, opposite
cyan-
blue
de-
down, from, off, opposite
dia-
across, through, apart
dis-
apart, free from
dys-
bad, difficult, abnormal, painful
ecto-
outer, outside
en-
in, into, within
endo-
inner, inside
epi-
over, on, upon
erythro-
red
eu-
normal, good, well, healthy
ex-
out, out of, from, away from
hemi-
half
hyper-
excessive, too much, high