In folklore traced back to medieval legend, a succubu is a female demon or supernatural being appearing in dreams, who takes the form of a human woman in order to seduce men, usually through sexual intercourse. The male counterpart is the incubus. Religious traditions hold that repeated intercourse with a succubus may result in the deterioration of health or even death. In modern fictional representations, a succubus may or may not appear in dreams and is often depicted as a highly attractive seductress or enchantress; whereas, in the past, succubi were generally depicted as frightening and demonic. The word is derived from Late Latin succuba 'strumpet', used to describe the supernatural being as well. The word is first attested from 1387. According to Zohar and the Alphabet of Ben Sira, Lilith was Adam's first wife who later became a succubus.
Contributions by Erolos, Zana Dark, and Mackeriv.