Papist :: Papist (n.) A Roman catholic; one who adheres to the Church of Rome and the authority of the pope; -- an offensive designation applied to Roman Catholics by their opponents.
Papistical :: Papistical (a.) Of or pertaining to the Church of Rome and its doctrines and ceremonies; pertaining to popery; popish; -- used disparagingly.
Papistry :: Papistry (n.) The doctrine and ceremonies of the Church of Rome; popery.