The Quenya form of S. Anduin (PE17/40), a compound of anda “long” and archaic †-(n)duinë “river”, which appears only in compounds (VT48/30).
Quenya
Anduinë
anduinë
anduinë
place name. Long River
löa yucainen avar anduinë sí valútier
twenty years have flowed away down the Long River
Anduinë place-name = Sindarin Anduin, Long River (PE17:40)