incubecommon nounSyllable DecompositionincubeEtymologyexpandfrom the Latin incubus, composed of in- ('on') and cubare ('to lie'), therefore 'who lies on'.Definition1. A kind of demon who, according to popular belief, takes the form of a man to have intercourse with a woman while she is asleep.expandAntonymsuccubePluralincubesTranslationsenglish:incubusitalian:incuboSee alsoincubes (v.)