n. [ First mentioned by Lutatius, or Lactantius Placidus, the scholiast on Statius, perh. fr. Gr. dai`mwn god, deity + gorgo`s fierce, terrible ] A mysterious, terrible, and evil divinity, regarded by some as the author of creation, by others as a great magician who was supposed to command the spirits of the lower world. See Gorgon. [ 1913 Webster ]

Orcus and Ades, and the dreaded name
Of Demogorgon. Milton. [ 1913 Webster ]