The story
- Ancient Greekμόνος (mónos)
- Ancient Greekμονο- (mono-)
- Englishmono-
- Proto-Indo-European*dʰewh₂-der.?
- Ancient Greekθέειον (théeion)
- Ancient Greekθεῖον (theîon)
- Englishthio-
- Englishhemiacetal
- English todaymonothiohemiacetal
From mono- + thio- + hemiacetal.
Etymology from Wiktionary, CC BY-SA 4.0.