mal-
bad;poor
a-, an-
without; lack of; absent
ab-
from; away
ad-
near; toward
ante-
before; forward
anti-
against
mega-
large
meta-
change:beyond
micro-
small
multi-
many
post-
behind: after
pre-
before: in front of
pseudo-
false
retro-
behind: backward
semi-
half
di-
two
dia-
through; between; complete
dys-
painful; difficult
ecto-
outside
endo-
within; inner
neo-
new
pan-
all
para-
alongside; abnormal
peri-
surrounding