This root form (lemma) is used in 2 different forms in the NT: Εὐφράτην (AMS), Εὐφράτῃ (DMS).
It is glossed in 1 way: ‘Eufrataʸs’.
OET REV 9:14 Greek word=Εὐφράτῃ (Eufrataʸ) Morphology=DMS English gloss=‘Eufrataʸs’ SR GNT REV 9:14 word 28
OET REV 16:12 Greek word=Εὐφράτην (Eufrataʸn) Morphology=AMS English gloss=‘Eufrataʸs’ SR GNT REV 16:12 word 16