Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | Petronius |
| Gen. | Petronii |
| Dat. | Petronio |
| Acc. | Petronium |
| Abl. | Petronio |
| Voc. | Petronie |
| PLURIEL |
| Nom. | Petronii |
| Gen. | Petroniōrum |
| Dat. | Petroniis |
| Acc. | Petronios |
| Abl. | Petroniis |
| Voc. | Petronii |
| SINGULIER |
| Nom. | Petroniă |
| Gen. | Petroniae |
| Dat. | Petroniae |
| Acc. | Petroniam |
| Abl. | Petroniā |
| Voc. | Petroniă |
| PLURIEL |
| Nom. | Petroniae |
| Gen. | Petroniārum |
| Dat. | Petroniis |
| Acc. | Petronias |
| Abl. | Petroniis |
| Voc. | Petroniae |
| SINGULIER |
| Nom. | Petronium |
| Gen. | Petronii |
| Dat. | Petronio |
| Acc. | Petronium |
| Abl. | Petronio |
| Voc. | Petronium |
| PLURIEL |
| Nom. | Petronia |
| Gen. | Petroniōrum |
| Dat. | Petroniis |
| Acc. | Petronia |
| Abl. | Petroniis | |