incatholicus

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.

in-căthŏlĭcus, a, um, adj.,

not catholic; perh. only as subst. plur. : incăthŏ-lĭci , ōrum, heretics : ab incatholicis catholica laceratur ecclesia, Cassiod. Anim. 12.