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succubus

/ˈsʌk.jʊ.bəs/ noun

In Latin: succuba Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about succubus at Wordnik → Where our words come from →

  1. A female demon believed to have sexual intercourse with sleeping men.

Origin

Pseudo-Latinism, derived from alteration of Late Latin succuba (“strumpet, especially a mythological fiend in female form who has intercourse with men in their sleep”) based on incubus in Middle English, from Latin succubo (“to lie under”), from sub- (“under”) + cubare (“to lie down”).

From Wiktionary, via Kaikki.org (CC BY-SA)