Etymology

prednisone

P3R1E1D2N1I1S1O1N1E1

Today it means: A glucocorticoid C₂₁H₂₆O₅ that is a dehydrogenated analog of cortisone, used to relieve rheumatic and allergic conditions and to treat leukemia. Full definition →

English (cort)isone ← German Keton ← French cholestéro
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The story

  1. Latinpraegnāns
  2. Englishpre(gnane)
  3. Proto-Indo-European*dwóh₁
  4. Proto-Indo-European*dwi-
  5. Proto-Hellenic*dwi-
  6. Ancient Greekδῐ- (dĭ-)
  7. Latindi-
  8. Englishdi-
  9. Englishd(ie)ne
  10. Proto-Indo-European*(s)ker-
  11. Proto-Indo-European*(s)kert-
  12. Proto-Indo-European*(s)kort-ek-s
  13. Latincortex
  14. Englishcortico-
  15. Proto-Indo-European*ǵʰelh₃-
  16. Proto-Hellenic*kʰolā́
  17. Ancient Greekχολή (kholḗ)
  18. Proto-Indo-European*ster-
  19. Ancient Greekστερεός (stereós)
  20. Frenchcholestérine
  21. Frenchcholestéro
  22. Englishcholesterol
  23. Englishsterol
  24. GermanKeton
  25. Englishketone
  26. Englishcorticosterone
  27. English(cort)isone
  28. English todayprednisone

From pre(gnane) + d(ie)ne + (cort)isone.

Etymology from Wiktionary, CC BY-SA 4.0.