This file courtesy of S. Connolly and DB Publishing
Demon/Daemon/Daimon: Modern definition - Lesser spirit or god. A devil in Christian mythology. Literal meaning for demon - "Replete with wisdom." Derived from the greek "daimon" meaning divine power. Divine comes from the Latin "divus" meaning God. Hence Demons are Gods in their own right.
Demonic: Being as or resembling a demon.
Demoniac: A person possessed by demons.
Demonocracy: The demonic hierarchies/governments.
Demonographer: One who studies and records the history and description of demons.
Demonography: The history and description of demons.
Demonolator: One who practices demonolatry. (feminine: Demonolatress)
Demonolatry: The worship of demons and/or practicing magick with the aid of entities known as demons.
Demonologist : One who studies and catalogues demons. Also known as a Demonographer.
Demonology: The study and cataloguing of demons.
Demonomancy: Divination by means of demons according to some texts. Literally to raise demons.