heresiarch.
The founder of a heresy, or a major ecclesiastical proponent of such a heresy.
Meaning & usage
The founder of a heresy, or a major ecclesiastical proponent of such a heresy.
Where this word comes from
Borrowed from French hérésiarque, from Ecclesiastical Latin haeresiarcha (or directly from the Latin word), from ecclesiastical Byzantine Greek αἱρεσιάρχης (hairesiárkhēs, “leader of a sect”), from Ancient Greek αἵρεσῐς (haíresĭs, “heresy”) + -ᾰ́ρχης (-ắrkhēs, “leader, ruler”), corresponding to heresy + -arch.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.