heresiarch

noun
he·re·si·arch | \hə-ˈrē-zē-ˌärk, ˈher-ə-sē- \

Definition of heresiarch 

: an originator or chief advocate of a heresy

Examples of heresiarch in a Sentence

his about-face on welfare reform has led him to be seen as a heresiarch among his party's faithful

First Known Use of heresiarch

1624, in the meaning defined above

History and Etymology for heresiarch

borrowed from Late Latin haeresiarchēs, haeresiarcha, borrowed from Greek hairesiárchēs, "leader of a school or sect," from haíresis "system of principles, sect, faction" + -archēs -arch entry 1 — more at heresy

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The first known use of heresiarch was in 1624

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to reject or criticize sharply

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