Etymology

dihydro

D2I1H4Y4D2R1O1

Today it means: Two hydrogen atoms in a molecule Full definition →

English hydro- ← Ancient Greek ῠ̔δρο- (hŭdro-) ← Proto-Hellenic *údōr
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The story

  1. Proto-Indo-European*dwóh₁
  2. Proto-Indo-European*dwi-
  3. Proto-Hellenic*dwi-
  4. Ancient Greekδῐ- (dĭ-)
  5. Latindi-
  6. Englishdi-
  7. Proto-Indo-European*wed-
  8. Proto-Indo-European*wódr̥
  9. Proto-Hellenic*údōr
  10. Ancient Greekῡ̆̔́δωρ (hū̆́dōr)
  11. Ancient Greekῠ̔δρο- (hŭdro-)
  12. Englishhydro-
  13. English todaydihydro

From di- + hydro-.

Etymology from Wiktionary, CC BY-SA 4.0.