Lewis Short
(adjective) : sĕdĭbĭlis, e, sedeo, q. v.
* Capable of being sat upon (late Lat.), Cassiod. in Psa. 1, 1.
(† sĕdĭcŭlum, sedile, Fest. p. 336 Müll.; acc. to Varr. L. L. 8, § 54 ib. this word is correctly formed, but not in use.)
Charlton T. Lewis, Charles Short, A Latin Dictionary