A person who writes about demons; an author, scholar, or scribe who creates descriptions or studies of demons.
From demonograph + -er (agent suffix indicating one who performs an action). Parallels words like photographer and biographer, where -grapher indicates a person who records or describes something.
Famous demonographers like Heinrich Kramer (author of Malleus Maleficarum) were treated as serious academic authorities, their demon catalogs given credibility similar to natural history books—we forget that demon studies was once mainstream scholarship.
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