Etymology

thiogalactoside

T1H4I1O1G2A1L1A1C3T1O1S1I1D2E1

Today it means: A galactoside in which the oxygen that links the aglycone to the sugar is replaced by a sulfur Full definition →

English galactoside ← Ancient Greek θεῖον (theîon) ← Proto-Indo-European *dʰewh₂-der.?
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The story

  1. Proto-Indo-European*dʰewh₂-der.?
  2. Ancient Greekθέειον (théeion)
  3. Ancient Greekθεῖον (theîon)
  4. Englishthio-
  5. Englishgalactoside
  6. English todaythiogalactoside

From thio- + galactoside.

Etymology from Wiktionary, CC BY-SA 4.0.