| Petr | Peter |
| Petra | Peta Petra Petrina |
| Petrus | Peter |
| petrol | teal |
| Pet | pet |
| Peter | Peter Pierce |
| Petit | brevier |
| Petrichor | petrichor |
| Petze | tattler protractor she-bear |
| Petzer | telltale |
| Petrefakt | fossil |
| Petrograd | Petrograd |
| Petroleum | kerosene paraffin |
| Metro | Tube |
| Peterle | Petey |
| Petri-Netz | Petri net |
| Petrinisch | Petrine |
| Petrologie | petrology |
| petrarkist | Petrarchan |
| petrolblau | teal |