Definition of Marcionist in English:

Marcionist

noun

Church History
  • = Marcionite.

Origin

Late Middle English; earliest use found in Reginald Pecock (c1392–?1459), bishop of Chichester and religious author. Either from the name of Marcion + -ist, or from post-classical Latin Marcionista or its etymon Hellenistic Greek Μαρκιωνιστής (2nd cent.).

Pronunciation

Marcionist

/ˈmɑːsɪənɪst//ˈmɑːʃ(ɪ)ənɪst/