Lewis Short
(adjective) : Achĕlōĭus, a, um, id..
* Pertaining to the river Achelous, Verg. G. 1, 9; Ov. H. 16, 265: Callirrhoë,daughter of Achelous,id. M. 9, 413.
* Aetolian: heros,i. e. Tydeus, the son of Oeneus, king of Aetolia,Stat. Th. 2, 142.
Charlton T. Lewis, Charles Short, A Latin Dictionary