(Ἰδυῖα), or EIDYIA, that is, the knowing goddess, a daughter of Oceanus and Tethys, and the wife of the Colchian king Aeetes. (Hes. Th. 352; Apollon. 3.243; Hyg. Fab. 25; Eustath. ad Hom. p. 1193.)
[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