|Noah Webster's Dictionary|
(a.) of or pertaining to a demon or to demons; demoniac.
Demonic (2 Occurrences)
James 3:15 This wisdom is not that which comes down from above, but is earthly, sensual, and demonic. (WEB NAS)
Revelation 16:14 for they are spirits of demons, doing signs -- which go forth unto the kings of the earth, and of the whole world, to bring them together to the battle of that great day of God the Almighty; -- (See RSV)