anti- against
bi- two
circum- around
com- together
con- together
de- down
dis- away
equi- equal
extra- beyond
inter- between
intra- within
intro- into
mal- bad
mis- bad
non- not
post- after
pre- before
semi- half
sub- under
super- over
syn- together
sym- together
tri- three
un- not
