| Prototyping | prototyping |
| Prototyp | prototype antetype prefiguration preliminary model |
| prototypisch | prototypical prototypal prototypic |
| Proktologin | proctologist |
| Proletin | Philistine |
| Propin | propyne |
| Protozoon | protozoan |
| Provitamin | vitamer |
| protzig | garish cocky |
| prötteln | fettle |
| Promotion | doctorate promotion promo |
| Protein | protein |
| Protologie | protology |
| Protolyse | protolysis |
| Proton | proton |
| Protonym | protonym |
| Protostern | protostar |
| Prototheria | Prototheria |
| promoten | promote |
| trottelig | goofy |