e, ex
out of, from, former
e.g. efface, exclude
in, im
not, without
e.g. inmoral, evil
pre
before, in front
e.g. premonition, presentiment
pro
in front, before, much, for
e.g proceed, propound
re
back, again
e.g. recline, regain
sub, sup
bellow, under
e.g. subliminal, substandard
efface
to rub or wipe out; surpass; eclipse
impartial
unbiased, fair
premonition
a feeling than an event may happen in the future
propound
to set forth for consideration
subliminal
existing beneath consciousness
substandard
inadequate, bellow expectations or requirements