Origin of succubusMiddle English from Medieval Latin (altered by associated, association with incubus) from Late Latin succuba, strumpet from Classical Latin succubare, to lie under from sub-, sub- + cubare, to lie: see cube
nounpl. suc·cu·bus·es, or suc·cu·bi also suc·cu·bae
- A female demon supposed to descend upon and have sexual intercourse with a man while he sleeps.
- An evil spirit; a demon.
Origin of succubusMiddle English from Medieval Latin alteration ( influenced by Late Latin incubus incubus ) of Latin succuba paramour from succubāre to lie under sub- sub- cubāre to lie down
(plural succubi or succubuses)
Alteration in Middle English of Late Latin succuba (“strumpet, especially a mythological fiend in female form who has intercourse with men in their sleep"), from succubare (“to lie under"), from sub- (“under") + cubare (“to lie down"), from Proto-Indo-European *keu(b) (“to bend, to turn").