Etymology

implausible

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Today it means: Not plausible; unlikely; dubious. Full definition →

English plausible ← Middle English in- ← Latin in-
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The story

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Italic*n̥-
  4. Latinin-
  5. Middle Englishin-
  6. Englishim-
  7. Englishplausible
  8. English todayimplausible

From im- + plausible.

Etymology from Wiktionary, CC BY-SA 4.0.