The story
- Proto-Indo-European*dʰewh₂-der.?
- Ancient Greekθέειον (théeion)
- Ancient Greekθεῖον (theîon)
- Englishthio-
- Ancient Greekπέπερῐ (péperĭ)
- Latinpiper
- English(pipe)rid(ine)
- English(phenothi)azine
- English todaythioridazine
From thio- + (pipe)rid(ine) + (phenothi)azine.
Etymology from Wiktionary, CC BY-SA 4.0.