The story
- Latin · derived fromAenus
- Medieval Latin · derived fromVallis
- Romansh · borrowed fromEngiadina
- English todayEngadin
Borrowed from Romansh Engiadina, which is first attested in 930 CE as Medieval Latin Vallis Eniatina. The toponym can perhaps be explained as a derivation from a reconstructed ethnonym *Eniates (“settlers on the Inn” (see Latin Aenus), with a Celtic suffix -ates for “settlers, inhabitants”; cf. Licātēs, Atrebatēs).
Etymology from Wiktionary, CC BY-SA 4.0.