Etymology

dysfunctional

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Today it means: Not performing its proper or intended function. Full definition →

Proto-Indo-European *h₂élisder.? ← English dysfunction ← Middle French function
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The story

  1. Proto-Indo-European*dews-?
  2. Proto-Indo-European*dus-
  3. Proto-Hellenic*dus-
  4. Ancient Greekδυσ- (dus-)
  5. New Latindys-
  6. Englishdys-
  7. Proto-Indo-European*bʰewg-
  8. Proto-Indo-European*bʰunégti
  9. Proto-Italic*fungōr
  10. Latinfungor
  11. Latinfūnctiō
  12. Old Frenchfonction
  13. Middle Frenchfunction
  14. Englishfunction
  15. Englishdysfunction
  16. Proto-Indo-European*h₂el-
  17. Proto-Indo-European*h₂élisder.?
  18. English todaydysfunctional

From dysfunction + -al.

Etymology from Wiktionary, CC BY-SA 4.0.