Lewis Short
(adjective) : incessābĭlis, e, 2. in-cesso
* Unceasing, incessant (post-class.): labor,Mart. Cap. 1, 14; Cael. Aur. Tard. 4, 6.—Adv.: in-cessābĭlĭter, incessantly, Mart. Cap. 9, 303; Hier. Ep. 64.
Charlton T. Lewis, Charles Short, A Latin Dictionary