Etymology

thioperoxide

T1H4I1O1P3E1R1O1X8I1D2E1

Today it means: Any of a class of compounds, of general formula R-S-O-R^' formally derived from the peroxides by replacing one oxygen atom with sulfur Full definition →

English peroxide ← 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. Englishperoxide
  6. English todaythioperoxide

From thio- + peroxide.

Etymology from Wiktionary, CC BY-SA 4.0.