Etymology

unauthenticate

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Today it means: To refuse to authenticate; to render inauthentic. Full definition →

English authenticate ← Medieval Latin authenticō ← Middle English on-
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The story

  1. Proto-Indo-European*h₂ent-
  2. Proto-Indo-European*h₂énts
  3. Proto-Germanic*anda-
  4. Proto-West Germanic*anda-
  5. Old Englishand-
  6. Old Englishon-
  7. Middle Englishon-
  8. Englishun-
  9. Medieval Latinauthenticō
  10. Englishauthenticate
  11. English todayunauthenticate

From un- + authenticate.

Etymology from Wiktionary, CC BY-SA 4.0.