(n.) One who writes on, or is versed in, demonology.

Acherontic Druid Hadean Lethean Parsi Plutonian Plutonic Sabaist Satan worshiper Satanist Stygian Tartarean Zoroastrian animal worshiper anthropolater arborolater archaeolater bibliolatrous chthonic demon worshiper demoniast demonist demonolater demonologer demonologist demonomist dendrolater devil worshiper devilish diabolist fetishist fetishistic fire worshiper heathen hellborn hellish idol worshiper idol worshiping idolater idolatress idolatric idolatrical idolatrizer idolatrous idolist idolistic idolizer infernal nature worshiper ophiolater pagan pandemoniac pandemonic phallic worshiper plutonian plutonic purgatorial pyrolater snake worshiper sorcerer star worshiper sulfurous sun worshiper theriolater therolater tree worshiper zoolater zoolatrous