| A | B |
| opprimo | opprimere, oppressi, oppressus crush, overwhelm |
| oppugno | oppugnare, oppugnavi, oppugnatus attack |
| oro | orare, oravi, oratus beg |
| ostendo | ostendere, ostendi, ostentus show |
| paene | almost, nearly |
| paro | parare, paravi, paratus prepare |
| pars | partis, f part |
| parvus | parva, parvum small |
| pater | patris, m father |
| patior | pati, passus sum suffer, endure |
| patria | patriae, f country, homeland |
| pauci | paucae, pauca few, a few |
| pax | pacis, f peace |
| pecunia | pecuniae, f money |
| pello | pellere, pepuli, pulsus drive |
| per | + acc through, along |
| pereo | perire, perii die, perish |
| periculum | periculi, n danger |
| persuadeo | persuadere, persuasi + dat persuade |
| perterritus | perterrita, perterritum terrified |
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