Choose a prefix by selecting it from the dropdown menu:

a- ab- abs- (away from) ad- (to, toward) circum- (around) con- co- (with, together) contra-, counter- (against) de- (down; off, away) di- dis- (apart; in two) e- ex- s- (out of) extra- (outside) in- en- em- (in, into, against, not) inter- (between, among) intra- intro- (within, inside) ob- (against, face-to-face) per- (through, to the bad) prae- pre- (before, ahead; surpassing) pro- pur- (before; forward) re- red- (back, again) retro- (backward) se- (apart) sub- (under) super- (over, above) trans- (across)

Make a list of 10-20 terms that include the prefix. Research the etymology of each term to verify that it includes the prefix.