|Easton's Bible Dictionary|
(Deuteronomy 15:11), i.e., "one who interrogates the dead," as the word literally means, with the view of discovering the secrets of futurity (Comp. 1 Samuel 28:7). (see DIVINATION.)
Noah Webster's Dictionary
(n.) One who predicts the future by communicating with the dead; a sorcerer; a wizard.
Necromancer (1 Occurrence)
Deuteronomy 18:11 or a charmer, or a consulter with a familiar spirit, or a wizard, or a necromancer. (WEB KJV JPS ASV WBS RSV)