Etymology

phytomenadione

P3H4Y4T1O1M3E1N1A1D2I1O1N1E1

Today it means: A yellow oily naphthoquinone C₃₁H₄₆O₂ that is obtained especially from alfalfa, cabbage, spinach, and other leafy green vegetables or made synthetically and that has a fast, potent, and prolonged biological effect. It is essential for the blood-clotting process, effective orally, and useful especially in treating hypoprothrombinemia induced by anticoagulant drugs (trademark Mephyton). Full definition →

English menadione ← German Keton ← Latin di-
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The story

  1. Englishphyt(ene)
  2. Proto-Indo-European*médʰu
  3. Proto-Hellenic*métʰu
  4. Ancient Greekμέθυ (méthu)
  5. Proto-Indo-European*swel-der.?
  6. Ancient Greekῡ̔́λη (hū́lē)
  7. GermanMethy
  8. Englishme(thyl)
  9. Akkadiannapṭumbor.?
  10. Old Persian*naftah
  11. Ancient Greekνάφθα (náphtha)
  12. Latinnaphtha
  13. Englishnaphth(a)
  14. Englishna(phthalene)
  15. Proto-Indo-European*dwóh₁
  16. Proto-Indo-European*dwi-
  17. Proto-Hellenic*dwi-
  18. Ancient Greekδῐ- (dĭ-)
  19. Latindi-
  20. Englishdi-
  21. GermanKeton
  22. Englishketone
  23. Englishdione
  24. Englishmenadione
  25. English todayphytomenadione

From phyt(ene) + -o- + menadione.

Etymology from Wiktionary, CC BY-SA 4.0.