| Prokaryot | prokaryote |
| Prokurist | proxy attorney |
| Prokyon | Procyon |
| Eukaryot | eukaryote |
| Prekariat | precariat |
| Pronaos | pronaos |
| Propanol | propanol |
| Propanon | acetone |
| Proselyt | proselyte |
| Prodrom | prodrome |
| Prokura | proxy |
| probat | proven appropriate suitable |
| Krokant | brittle |
| Trokar | trocar |
| Brokat | brocade |
| Eukaryote | eukaryote |
| Prekarium | precarium |
| prekär | precarious tricky uneasy awkward embarrassing parlous really difficult |
| Krapprot | madder |
| krapprot | madder |