Bible Dictionaries
Incubus

Webster's Dictionary

(1):

(n.) Any oppressive encumbrance or burden; anything that prevents the free use of the faculties.

(2):

(n.) A demon; a fiend; a lascivious spirit, supposed to have sexual intercourse with women by night.

(3):

(n.) The nightmare. See Nightmare.

Bibliography Information
Webster, Noah. Entry for 'Incubus'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​i/incubus.html. 1828.