Etymology

tiotropium

T1I1O1T1R1O1P3I1U1M3

Today it means: An anticholinergic drug administered by oral inhalation in the form of its bromide C₁₉H₂₂NO₄S₂Br·H₂O as a bronchodilator in the treatment of chronic obstructive pulmonary disease. Full definition →

English thio- ← 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. English todaytiotropium

From thio- (“containing sulfur”) + -trop- (“atropine derivative”) + -ium (“quaternary ammonium compound”).

Etymology from Wiktionary, CC BY-SA 4.0.