Etymology

methionine

M3E1T1H4I1O1N1I1N1E1

Today it means: A sulphur-containing amino acid, C₅H₁₁NO₂S, in L- and D-forms. Full definition →

English thio- ← Ancient Greek θεῖον (theîon) ← Proto-Indo-European *dʰewh₂-der.?
Ask AI about its historyChatGPTClaudePerplexityGoogle AIGrok

The story

  1. Proto-Indo-European*médʰu
  2. Proto-Hellenic*métʰu
  3. Ancient Greekμέθυ (méthu)
  4. Proto-Indo-European*swel-der.?
  5. Ancient Greekῡ̔́λη (hū́lē)
  6. GermanMethy
  7. Englishmethyl
  8. Proto-Indo-European*dʰewh₂-der.?
  9. Ancient Greekθέειον (théeion)
  10. Ancient Greekθεῖον (theîon)
  11. Englishthio-
  12. English todaymethionine

From methyl + thio- + -n- + -ine.

Etymology from Wiktionary, CC BY-SA 4.0.