Common Latin Prefixes:
* ab-: away from (abnormal, absent)
* ad-: to, toward (adhere, advance)
* ante-: before (antecedent, antebellum)
* bi-: two (bicycle, bilingual)
* circum-: around (circumnavigate, circumference)
* co-: with, together (cooperate, coexist)
* contra-: against (contradict, contrary)
* de-: down, from, away (depart, decrease)
* dis-: not, apart (dislike, disagree)
* ex-: out, from, former (exit, ex-president)
* extra-: beyond, outside (extracurricular, extraordinary)
* in-: in, into, not (inside, inactive)
* inter-: between (interfere, international)
* intra-: within (intracellular, intravenous)
* mal-: bad, ill (malfunction, malpractice)
* non-: not (nonexistent, nonsensical)
* omni-: all (omnipotent, omnipresent)
* per-: through, completely (perfect, persevere)
* pre-: before, beforehand (precede, predict)
* pro-: forward, in favor of (promote, pro-choice)
* re-: again, back (return, rewrite)
* sub-: under, below (submarine, subconscious)
* super-: above, beyond (superhuman, superior)
* trans-: across, beyond (transport, translate)
* un-: not, opposite (unhappy, unlock)
This is just a small sample of the many Latin prefixes used in English. They are a valuable tool for understanding the meaning of words, and for building new vocabulary.