Etymology

unarguably

U1N1A1R1G2U1A1B3L1Y4

Today it means: Synonym of inarguably. Full definition →

English unarguable ← Middle English arguen ← Old French arguer
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The story

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Germanic*un-
  4. Proto-West Germanic*un-
  5. Old Englishun-
  6. Middle Englishun-
  7. Englishun-
  8. Proto-Indo-European*h₂erǵ-
  9. Proto-Indo-European*h₂érǵus
  10. Proto-Italic*argusder.?
  11. Latinarguō
  12. Old Frencharguer
  13. Middle Englisharguen
  14. Englishargue
  15. Englisharguable
  16. Englishunarguable
  17. English todayunarguably

From unarguable + -ly.

Etymology from Wiktionary, CC BY-SA 4.0.