succubus

noun suc·cu·bus \-bəs\

plural suc·cu·bi\-ˌbī, -ˌbē\

Definition of SUCCUBUS

: a demon assuming female form to have sexual intercourse with men in their sleep — compare incubus

Middle English, from Medieval Latin, alteration of Latin succuba paramour, from succubare to lie under, from sub- + cubare to lie, recline

First Known Use: 14th century

Medical Dictionary

noun suc·cu·bus \ˈsək-yə-bəs\

plural suc·cu·bi \-ˌbī, -ˌbē\

: an imaginary demon assuming female form and formerly held to have sexual intercourse with men in their sleep—compare incubus 1

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