dissimulator
From LSJ
τούτων γάρ ἑκάτερον κοινῷ ὀνόματι προσαγορεύεται ζῷον, καί ὁ λόγος δέ τῆς οὐσίας ὁ αὐτός → and these are univocally so named, inasmuch as not only the name, but also the definition, is the same in both cases (Aristotle, Categoriae 1a8-10)
Latin > English (Lewis & Short)
dissĭmŭlātor: ōris, m. id.,
I a dissembler, concealer, Sall. C. 5, 4; Quint. 2, 2, 5; Tac. H. 2, 56; Hor. Ep. 1, 9, 9 al.