A person who loves or vehemently propounds his or her own opinions; a dogmatic or argumentative person.
Chiefly in translations of Montaigne.
Early 17th century; earliest use found in John Florio (1553–1625), author and teacher of languages. From French philodoxe and its etymon ancient Greek ?ιλ?δοξο? loving belief or opinion (Plato) from ?ιλο- + δ?ξα opinion, glory.