O

• obliviscor, oblivisci, oblitus sum - to forget
• obses, obsidis (m/f) - hostage
• obsideo, obsidere, obsedi, obsessus - to besiege
• obviam eo, ire, ii (+ dat) - to meet, oppose, resist
• occasio, occasionis (f) - opportunity, occasion
• contemno, contemnere, contempsi, contemptum - to hate
• odium, odii (n) - hatred
• offero, offerre, obtuli, oblatum - to present, offer
• officium, officii (n) - duty, task, function
• omitto, omittere, omisi, omissus - to omit, neglect, disregard,
• omnino - altogether, at all, entirely
• onus, oneris (n) - burden, load
• opera, operae (f) - work, effort, attention, trouble
• operam do - I take pains, give attention (to)
• oportet, oportere, oportuit - to be necessary, ought, must
• opprimo, opprimere, oppressi, oppressum - to overwhelm, crush, weigh down
• opis (f pl) - resources, riches
• opus, operis (n) - work, toil, construction
• omnino - altogether, entirely
• opus est, esse, fuit (+ abl) - there is a need of
• occurro, occurrere, occurri, occursum - to run to meet, charge, rush to attack