The story
- Proto-Indo-European*sper-
- Proto-Indo-European*sper-yeh₂-
- Ancient Greekσπεῖρα (speîra)
- Latinspīra
- Englishspiro-
- GermanKeton
- Englishketone
- Latinlac
- Englishlacto-
- Englishlactone
- English todayspironolactone
Etymology from Wiktionary, CC BY-SA 4.0.