Aenus
Αἶνος
Aenus (Αἶνος, Ptol. 2.11.5; Oenus, Itin. Anton.: Inn), a river rising in the Rhaetian or Tridentine Alps, dividing Rhaetia Secunda (Vindelicia) from Noricum, and flowing into the Danube, of which it was one of the principal feeders, at Passan. (Tac. Hist. 3.5.)
From William Smith (ed.), Dictionary of Greek and Roman Geography. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.