Definition of "necromancy" in English

noun

1. Divination involving the dead or death.

   • 1867 E. Rogers, quoted in K. Thomas Relig. & Decline of Magic the Devil did often tempt me to study necromancy and nigromancy and to make use of magic, and to make a league with him...

2. Loosely, any sorcery or witchcraft, especially involving death or the dead, particularly sorcery involving raising or reanimating the dead.

3. (Internet) Synonym of necroposting.