The ghoul, from Arabic ghul, belongs to pre-Islamic Arabian folklore as a class of shape-shifting desert-dwelling jinn, a predatory being said to lure travellers off known paths, often by mimicking a human voice or the cry of a lost companion, before killing and consuming them. Early Arabic poetry and lexicography describe the ghul as female by default in many tellings, a desert demon associated with wastelands and graveyards, and grammatically the word gave Arabic its verb for a thing that "seizes" or destroys unexpectedly, reflecting how central the danger of the open desert was to the concept.
Islamic-era tradition inherited and adapted pre-Islamic ghul lore alongside its broader absorption of jinn belief, and the Islamic understanding of death and resurrection literature treats such desert spirits as part of a wider unseen world that Quranic revelation reframed theologically without erasing the older folk figure entirely. The grave-robbing, corpse-eating ghoul familiar from later Gothic fiction and modern horror media is a substantial narrowing and relocation of the original wilderness predator, one that English and French orientalist translation and adaptation, especially from the eighteenth century onward, fixed in the Western imagination largely independent of how the ghul continued to function in its own tradition.