| Latin | English | |
| occido | to kill | » |
| occidio | slaughter, massacre | » |
| occludo | to close, shut up, close off | » |
| orchas, orchadis | a type of olive | » |
| occido, occidi, occasum | to fall, fall down, (for the sun) to set | » |
| Oculi plus vident quam oculus | Several eyes see more than only one | » |
| Omne tulit punctum, qui miscuit utile dulci | He has gained every point who has mixed the useful and the agreeable | » |
| Omnes homines sibi sanitatem cupiunt, saepe autem omnia, quae valetudini contraria sunt, faciunt | All men wish to be healthy, but often they do everything that's disadvantageous to their health | » |