(Ἀγριώνιος), a surname of Dionysus, under which he was worshipped at Orchomenus in Boeotia, and from which his festival Agrionia in that place derived its name. (Dict. of Ant. p. 30; Müller, Orchom. p. 166, &c.)
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890