Di·ab'o·lism noun 1. Character, action, or principles appropriate to the devil. 2. Possession by the devil. Bp. Warburton. Found on http://www.encyclo.co.uk/webster/D/56
· action aided or caused by the devil; sorcery; witchcraft. · the character or condition of a devil. · a doctrine concerning devils. · a belief in or worship of devils. Found on https://www.infoplease.com/dictionary/diabolism