Dissimulator | Webster's Dictionary of the English Language

dissimulator
dissĭmŭlātor, ōris, m. [dissimulo], a dissembler , concealer , Sall. C. 5, 4; Quint. 2, 2, 5; ...

A New Latin Dictionary by Charlton T. Lewis Ph.D. and Charles Short, LL. D.
dissimulator
dissimulātor ōris, m dissimulo, a dissembler, concealer : alcuius rei, S.: opis propriae, of my o...

An Elementary Latin Dictionary