Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | Ericthonius |
| Gen. | Ericthonii |
| Dat. | Ericthonio |
| Acc. | Ericthonium |
| Abl. | Ericthonio |
| Voc. | Ericthonie |
| PLURIEL |
| Nom. | Ericthonii |
| Gen. | Ericthoniōrum |
| Dat. | Ericthoniis |
| Acc. | Ericthonios |
| Abl. | Ericthoniis |
| Voc. | Ericthonii |
| SINGULIER |
| Nom. | Ericthoniă |
| Gen. | Ericthoniae |
| Dat. | Ericthoniae |
| Acc. | Ericthoniam |
| Abl. | Ericthoniā |
| Voc. | Ericthoniă |
| PLURIEL |
| Nom. | Ericthoniae |
| Gen. | Ericthoniārum |
| Dat. | Ericthoniis |
| Acc. | Ericthonias |
| Abl. | Ericthoniis |
| Voc. | Ericthoniae |
| SINGULIER |
| Nom. | Ericthonium |
| Gen. | Ericthonii |
| Dat. | Ericthonio |
| Acc. | Ericthonium |
| Abl. | Ericthonio |
| Voc. | Ericthonium |
| PLURIEL |
| Nom. | Ericthonia |
| Gen. | Ericthoniōrum |
| Dat. | Ericthoniis |
| Acc. | Ericthonia |
| Abl. | Ericthoniis | |