noun (n)

• the belief in magical spells that harness occult forces or evil spirits to produce unnatural effects in the world(noun.cognition)

  Synonym:
  black art, black magic, necromancy
  

  source: wordnet30
• Divination by the assistance, or supposed assistance, of evil spirits, or the power of commanding evil spirits; magic; necromancy; witchcraft; enchantment.(noun)

  source: webster1913