Etymology

subdifferential

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Today it means: subderivative Full definition →

English differential ← Latin differentiāli ← Proto-Indo-European *h₂élisder.?
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The story

  1. Proto-Indo-European*upó
  2. Proto-Italic*supo
  3. Latinsub
  4. Latinsub-
  5. Englishsub-
  6. Proto-Indo-European*dwóh₁
  7. Proto-Indo-European*trísinflu.
  8. Proto-Indo-European*d(w)is-
  9. Proto-Italic*dis-
  10. Latindis-
  11. Proto-Indo-European*bʰer-
  12. Proto-Indo-European*bʰéreti
  13. Proto-Italic*ferō
  14. Latinferō
  15. Latindifferō
  16. Latindifferēns
  17. Latindifferentia
  18. Proto-Indo-European*h₂el-
  19. Proto-Indo-European*h₂élisder.?
  20. Latindifferentiāli
  21. Englishdifferential
  22. English todaysubdifferential

From sub- + differential.

Etymology from Wiktionary, CC BY-SA 4.0.