Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | Borysthenius |
| Gen. | Borysthenii |
| Dat. | Borysthenio |
| Acc. | Borysthenium |
| Abl. | Borysthenio |
| Voc. | Borysthenie |
| PLURIEL |
| Nom. | Borysthenii |
| Gen. | Borystheniōrum |
| Dat. | Borystheniis |
| Acc. | Borysthenios |
| Abl. | Borystheniis |
| Voc. | Borysthenii |
| SINGULIER |
| Nom. | Borystheniă |
| Gen. | Borystheniae |
| Dat. | Borystheniae |
| Acc. | Borystheniam |
| Abl. | Borystheniā |
| Voc. | Borystheniă |
| PLURIEL |
| Nom. | Borystheniae |
| Gen. | Borystheniārum |
| Dat. | Borystheniis |
| Acc. | Borysthenias |
| Abl. | Borystheniis |
| Voc. | Borystheniae |
| SINGULIER |
| Nom. | Borysthenium |
| Gen. | Borysthenii |
| Dat. | Borysthenio |
| Acc. | Borysthenium |
| Abl. | Borysthenio |
| Voc. | Borysthenium |
| PLURIEL |
| Nom. | Borysthenia |
| Gen. | Borystheniōrum |
| Dat. | Borystheniis |
| Acc. | Borysthenia |
| Abl. | Borystheniis | |