Déclinaison / Conjugueur latin
| SINGULIER |
| Nom. | Euphrataeus |
| Gen. | Euphrataei |
| Dat. | Euphrataeo |
| Acc. | Euphrataeum |
| Abl. | Euphrataeo |
| Voc. | Euphrataee |
| PLURIEL |
| Nom. | Euphrataei |
| Gen. | Euphrataeōrum |
| Dat. | Euphrataeis |
| Acc. | Euphrataeos |
| Abl. | Euphrataeis |
| Voc. | Euphrataei |
| SINGULIER |
| Nom. | Euphrataeă |
| Gen. | Euphrataeae |
| Dat. | Euphrataeae |
| Acc. | Euphrataeam |
| Abl. | Euphrataeā |
| Voc. | Euphrataeă |
| PLURIEL |
| Nom. | Euphrataeae |
| Gen. | Euphrataeārum |
| Dat. | Euphrataeis |
| Acc. | Euphrataeas |
| Abl. | Euphrataeis |
| Voc. | Euphrataeae |
| SINGULIER |
| Nom. | Euphrataeum |
| Gen. | Euphrataei |
| Dat. | Euphrataeo |
| Acc. | Euphrataeum |
| Abl. | Euphrataeo |
| Voc. | Euphrataeum |
| PLURIEL |
| Nom. | Euphrataea |
| Gen. | Euphrataeōrum |
| Dat. | Euphrataeis |
| Acc. | Euphrataea |
| Abl. | Euphrataeis | |