| Photolyse | photolysis |
| Protolyse | protolysis |
| Homolyse | homolysis |
| Phonologe | phonologist |
| Photopsie | photopsia |
| Autolyse | autolysis |
| Hämolyse | hemolysis |
| Pyrolyse | pyrolysis |
| Phobos | Phobos |
| Photokopie | photocopy |
| Photopeak | photopeak |
| photonisch | photonic |
| Phonologie | phonology |
| Photon | photon |
| Hotplate | hotplate |
| Hotline | hotline |
| Lhotse | Lhotse |
| Protologie | protology |
| Protonym | protonym |
| Prototyp | prototype antetype prefiguration preliminary model |