We don't have synonyms for succubuses yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are succubus.
(n) :
(mediaeval folklore) A female demon which comes to men, especially monks, in their dreams to seduce them and have sexual intercourse, drawing energy from the men to sustain themselves, often until the point of exhaustion or death.
(n) :
(mediaeval folklore) A female demon which comes to men, especially monks, in their dreams to seduce them and have sexual intercourse, drawing energy from the men to sustain themselves, often until the point of exhaustion or death.