Etymology

reduction

re·duc·tion
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Today it means: The act, process, or result of reducing. Full definition →

Middle English reduccion ← Old French reducion ← Latin reductiō, reductiōnem
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The story

  1. Latin · derived fromreductiō, reductiōnem
  2. Old French · derived fromreducion
  3. Middle English · inherited fromreduccion
  4. English todayreduction

From Middle English reduccion, a borrowing from Old French reducion, from Latin reductiō, reductiōnem. Equivalent to reduce + -tion.

Etymology from Wiktionary, CC BY-SA 4.0.