(Λήθη), the personification of oblivion, is called by Hesiod (Hes. Th. 227) a daughter of Eris. A river in the lower world likewise bore the name of Lethe. [HADES.]
[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