(Ἐλευσινία), or ELEUSINIA, a surname of Demeter and Persephone, derived from Eleusis in Attica, the principal seat of their worship. (Virg. Georg. 1.163; Phornut N. D. 27; Steph. Byz s. v. Ἐλευσίς.)
[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