Etymology

thio-

Today it means: containing sulfur, especially a compound in which oxygen has been replaced by this element Full definition →

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. English todaythio-

Derived from Ancient Greek θεῖον (theîon, “sulfur”).

Words from the same roots

Ancient Greekθεῖον all →

Februarythion hudor

Etymology from Wiktionary, CC BY-SA 4.0.