Originally Compiled These lists were originally compiled on Daily Writing Tips “List of Prefixes and Suffixes and their Meanings” List of Prefixes a- or an-: at, in or in the process of, on; not, without acro- or acr-: beginning, end, height, peak, summit, tip, top ad- or (first sense only) ac-, af-, ag-, al-, ap-, as-, or at-: to, toward; adjacent to, near aero-: air, atmosphere, aviation, gas after-: following, lower, rear, resulting ambi-: both ante-: before, forward, prior or prior to anti- or ant- or anth-: against, alleviating, curing, opposed, opposite, preventing arch- or (second sense only) arche- or archi-: chief, extreme, principal; original, primary, primitive auto- or aut-: automatic, same one, self or self-acting bi- or (second sense only) bio-: between, double, two, twice; biographical, life chrono- or chron-: time circum-: about, around co-: alternate, deputy, fellow, in or to the same degree, joint, partner, together, with com-, col-, or con-: jointly, together, with contra-: against, contrary, contrasting counter-: against, complementary, contrary, corresponding, duplicate, opposing, retaliatory, substitute crypto- or crypt-: coded, covered, hidden cyber-: pertaining to computers or computer networks de-: derived from something, do the opposite, get off of, reduce, remove from, reverse of, something derived […]