| A | B |
|---|
| nota bene (N.B.) | note well, pay attention |
| O tempora! O mores! | O the times! O the customs! |
| panem et circenses | bread and circuses |
| pater familias | father of the familia |
| per capita | by heads, individually |
| per centum | out of each hundred |
| per diem | by the day, daily allowance |
| per se | by itself, intrinsically |
| persona non grata | unwelcome person |
| placebo | inactive medicine given to satisfy a patient |
| post meridiem (P.M.) | after midday |
| post mortem | examination of a corpse, autopsy |
| post scriptum (P.S.) | afterthought added to a completed letter |
| pro bono publico | for the people's good, free |
| pro rata | in proportion, according to a fixed share |
| pro se | in one's own defense |
| pro tempore | temporarily |
| Quis custodiet ipsos custodes? | Who will guard the guards themselves? |
| quid pro quo | something for something |
| quod erat demonstrandum (Q.E.D.) | that which was to be proved |
| quod vide (q.v.) | refer to |
| rara avis | an unusual person, a rare bird |
| recipe (Rx) | take, symbol for a prescription |
| res ipsa loquitur | the situation is obvious |
| requiescat in pace (R.I.P.) | May he/she rest in peace. |
| Senatus Populusque Romanus | The Senate and the Roman people |
| sic | thus, indicates that a mistake came from the source itself |
| sic transit gloria mundi | thus passes the glory of the world |
| sine die | without a date set to reassemble |
| sine qua non | the essential element, a necessity |
| statim (stat) | immediately |
