Etymology

thiopental

T1H4I1O1P3E1N1T1A1L1

Today it means: A barbiturate C₁₁H₁₈N₂O₂S (trademark Pentothal) used in the form of its sodium salt especially as an intravenous anesthetic; and as a supposed truth serum. Full definition →

English pent(obarbi)tal ← 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. Englishpent(obarbi)tal
  6. English todaythiopental

From thio- + pent(obarbi)tal.

Etymology from Wiktionary, CC BY-SA 4.0.