Sindarin: Erui
References: Verified: LRde Case-sensitive: LR(1), RK(1), VII(1), VIII(2)
English: River Erui
German: Fluss Erui ‘River Erui’
Erui — Tolkien Gateway
Erui — The Thain's Book
Erui / River Erui, The river that flowed out of Lossarnach. — Encyclopedia Arda