Etymology

peacekeeper

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Today it means: One that preserves the peace. Full definition →

English keeper ← Middle English pees ← Anglo-Norman peis
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The story

  1. Proto-Indo-European*peh₂ḱ-
  2. Proto-Indo-European*péh₂ḱs
  3. Proto-Italic*pāks
  4. Latinpāx
  5. Old Frenchpais
  6. Anglo-Normanpeis
  7. Middle Englishpees
  8. Englishpeace
  9. Englishkeeper
  10. English todaypeacekeeper

From peace + keeper.

Etymology from Wiktionary, CC BY-SA 4.0.