Etymograph

English

agent provocateur

Agent provocateur comes from French agent provocateur.

  1. Frenchc. 1600–presentagent provocateurliterally ‘provocative agent’
  2. Englishearliest quotation 1925same form

attested reconstructed ? uncertain or disputed

Lineage

  1. Frenchc. 1600–presentagent provocateurliterally ‘provocative agent’
  2. Englishearliest quotation 1925same form

Earliest quotation: 1925, – 1926 May, In which the Reader is Shown the Habits of a Notorious Crimi: “This agent-provocateur business is quite foreign to British justice.”

The story

Borrowed from French agent provocateur (literally “provocative agent”).

Today it means

noun A person who secretly disrupts a group's activities from within the group, particularly by encouraging or committing illegal acts to discredit the group or expose them to prosecution; an instigator, troublemaker.

Language periods are conventional ranges, not dates for this word.

Etymograph / French agent provocateur / agent provocateur