Hades (lit. the Unseen), the dark abode of the shades of the dead in the nether world, the entrance into which, on the confines of the Western Ocean, is unvisited by a single ray of the sun; originally the god of the nether world, and a synonym of Pluto (q.v.).
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Haden, Sir Francis Seymour * Hadith