Etymology

proof

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Today it means: An effort, process, or operation designed to establish or discover a fact or truth; an act of testing; a test; a trial. Full definition →

Middle English proof ← Old French prove ← Late Latin proba
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The story

  1. Latin · derived fromprobō“to prove”
  2. Late Latin · derived fromproba“a proof”
  3. Old French · derived fromprove
  4. Middle English · inherited fromproof
  5. English todayproof

From Middle English proof, from Old French prove, from Late Latin proba (“a proof”), from Latin probō (“to prove”); see prove; compare also the doublet probe.

Words from the same roots

Late Latinproba all →

Latinprobō all →

Etymology from Wiktionary, CC BY-SA 4.0.