ab-         away from
ad-         toward, to
ante-         before
anti-         against
auto-         self
bi-         twice, double
brady-         slow
circum-         around
contra-         opposed, against
co-         with
cyst-         bladder, sac
dys-         difficult
ex-         without, away from
hemato-         blood
hemi-         half
hydro-         water
hyper-         more, higher
hypo-         less, lower
intra-         within
inter-         between
leuko-         white
micro-         small
mega-         large
multi-         many
myo-         muscle
neo-         new
nephro-         kidney
para-         beside
peri-         around
pneumo-         lung
poly-         many
post-         after
pre-         before
pseudo-         false
quadra-         four
retro-         behind
semi-         half
sub-         under
super-         above
trans-         across
un-         against
uni-         one