Lewis Short
(adjective) : crŭcĭārĭus, a, um, crux
* Of or pertaining to the cross, or, in gen., to torture.
* Adj.: exitus,full of torture,Tert. Praescr. Haeret. 2 dub. (al. cruciatorios): poenae,Sid. Ep. 8, 6.
* Subst., one who is crucified, Petr. 112; Sen. Contr. 3, 21.—Hence
* As a term of reproach, one fit for the gallows, a gallows-bird, App. M. 10, p. 242: longum est quae cruciarius ille conflavit,Amm. 29, 2, 9.
Charlton T. Lewis, Charles Short, A Latin Dictionary