Necromancy

Necromancy [nikroʊmeɪnsi] (Greek νεκρομαντία, nekromantía) is a form of divination in which the practitioner seeks to summon "operative spirits" or "spirits of divination", for multiple reasons, from spiritual protection to wisdom. The word necromancy derives from the Greek νεκρός (nekrós), "dead", and μαντεία (manteía), "divination".

However, since the Renaissance, necromancy has come to be associated more broadly with black magic and demon-summoning in general, sometimes losing its earlier, more specialized meaning. By popular etymology, nekromantia became nigromancy "black arts", and Johannes Hartlieb (1456) lists demonology in general under the heading. Eliphas Levi, in his book Dogma et Ritual, states that necromancy is the evoking of aerial bodies.