Lewis Short
incŭbātor (noun M) : id..
* One who lies in any place (post-class.): fani, one who sleeps in a temple, Tert. Anim. 49.
* An oppressive or unlawful possessor: inclementissimus aulae Siculae Dionysius,Macr. Somn. Scip. 1, 10: imperii tyrannus dicitur,Serv. ad Verg. A. 7, 266.
Charlton T. Lewis, Charles Short, A Latin Dictionary