prefixes
bi-
two
sub-
under (position)
inter-
between
pre-
before
a-, an-
without, not
hyper-
to excessive, above, or more than normal
hypo-
to deficient, below, or less than normal
epi-
above or upon
en-, endo-
inside, within
in-
in, into
ex-
out, away from
auto-
self
micro
small