Etymology

isoeffective

I1S1O1E1F4F4E1C3T1I1V4E1

Today it means: Of a dose of radiation: Having the same biological effect. Full definition →

English effective ← French effectif ← Latin effectīvu
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The story

  1. Ancient Greekῐ̓́σος (ĭ́sos)
  2. Englishiso-
  3. Proto-Indo-European*h₁éǵʰ
  4. Proto-Indo-European*h₁éǵʰs
  5. Proto-Italic*eks
  6. Latinex
  7. Latinex-
  8. Proto-Indo-European*dʰeh₁-
  9. Proto-Indo-European*dʰeh₁k-
  10. Proto-Indo-European*dʰh₁kyéti
  11. Proto-Italic*θakjō
  12. Proto-Italic*fakjō
  13. Latinfaciō
  14. Latinefficiō
  15. Latineffectīvu
  16. Frencheffectif
  17. Englisheffective
  18. English todayisoeffective

From iso- + effective.

Etymology from Wiktionary, CC BY-SA 4.0.