Ghoul

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late 18th century: from Arabic ġūl, a desert demon believed to rob graves and devour corpses.

wiktionary

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From Persian غول‎ (ğul) from Arabic غُول‎ (ḡūl). Compare French goule, of the same origin.

etymonline

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ghoul (n.)

1786, goul, in the English translation of William Beckford's Orientalist novel "Vathek" (which was written in French), from Arabic ghul, an evil spirit that robs graves and feeds on corpses, from ghala "he seized."