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Faith & RitualGreekEnglish

Heresiarch

/həˈriːziɑːrk/noun

The founder or leading figure of a heresy.

The Greek roots

αἵρεσις
haíresis
choice, sect
+
ἀρχός
arkhós
leader, chief

Literally: chief of a sect

The story of the word

Haíresis began neutral. It meant a choosing, then a school of thought, and Josephus uses it of the Pharisees and Sadducees without any sting; the poison is a Christian development, in which choosing for yourself became the offence. A heresiarch was therefore not merely wrong but the source of other people's wrongness, which is why Arius and Nestorius earned the noun while their followers got only adjectives.

How it travelled
Ancient Greek → Late Latin → English
First recorded
17th century

Same family

heresyhereticpatriarchmonarch

In a sentence

Every council needed a heresiarch to condemn by name.

Built on the same root

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