popismnonce-wd.|ˈpəʊpɪz(ə)m| [f. pope n.1 + -ism.] The papal system or religion; = popery 1. 1840Carlyle Heroes iv. (1872) 123 Formulism, Pagan Popeism, and other Falsehood.Ibid. 126 To..say: See, Protestantism is dead; Popeism is more alive than it, will be alive after it!