| Petra | Peta Petra Petrina |
| Petr | Peter |
| Pet | pet |
| Petit | brevier |
| Petrus | Peter |
| Petze | tattler protractor she-bear |
| petrarkist | Petrarchan |
| petrol | teal |
| Peter | Peter Pierce |
| Metro | Tube |
| Betrag | amount absolute value magnitude |
| Extra | perk |
| extra | additionally deliberately particularly |
| Mitra | mitre |
| Patras | Patras |
| Sutra | sutra |
| Tatra | Tatra |
| Ultra | extremist |
| Peterle | Petey |
| Petzer | telltale |