da=n: a town in Acarnania, on the west bank of the Acheloüs. It was about ten miles from the mouth of that river, which is described by (2. 102) as e)s qa/lassan .. e)ciei\s par' *oi)nia/das kai\ th\n po/lin au)toi=s perilimna/zwn. Marshes, due partly to the lake Melitè, insulated the hill on which the town stood, and made the site a strong one. The name was familiar to Athenians in the poet's time. Oeniadae was long a centre of anti-Athenian influence in western Greece. It was unsuccessfully besieged by Pericles (Th. 1. 111, 454 B.C.); but, under pressure from the other Acarnanian towns, was received into the Athenian alliance by Demosthenes in 424 B.C. (Th. 4. 77). The site (now Tricardo) was first identified by Leake.
Oeniadae was some twelve miles W.S.W. of Pleuron. As Heracles arrives from his famous home to the east, so it is fitting that the river-god should come from the western town which was a chief seat of his worship. The head of the Acheloüs appears on coins of Oeniada