Etymology

hexahistidyl

H4E1X8A1H4I1S1T1I1D2Y4L1

Today it means: Six histidyl groups in a molecule Full definition →

English histidyl ← Ancient Greek ῡ̔́λη (hū́lē) ← Proto-Indo-European *swel-der.?
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The story

  1. Proto-Indo-European*swéḱs
  2. Proto-Hellenic*hwéks
  3. Ancient Greekἕξ (héx)
  4. Ancient Greekἑξα- (hexa-)
  5. Latinhexa-
  6. Englishhexa-
  7. Proto-Indo-European*steh₂-
  8. Ancient Greekῐ̔στός (hĭstós)
  9. Englishhisto-
  10. Englishhistidine
  11. Proto-Indo-European*swel-der.?
  12. Ancient Greekῡ̔́λη (hū́lē)
  13. Englishhistidyl
  14. English todayhexahistidyl

From hexa- + histidyl.

Etymology from Wiktionary, CC BY-SA 4.0.