The story
- Proto-Indo-European*ḱleh₁-
- Proto-Indo-European*ḱl̥h₁éh₁yeti
- Proto-Italic*kalēō
- Latincaleō
- Proto-Indo-European*dʰeh₁-
- Proto-Indo-European*dʰeh₁k-
- Proto-Indo-European*dʰh₁kyéti
- Proto-Italic*θakjō
- Proto-Italic*fakjō
- Latinfaciō
- Latincalefaciō
- Classical Latincalfaciō
- Vulgar Latin*calfō
- Old Frenchchaufer
- Middle Englishchaufen
- English todaychafe
Inherited from Middle English chaufen (“to warm”), borrowed from Old French chaufer (modern French chauffer), from Latin calefacere, calfacere (“to make warm”), from calere (“to be warm”) + facere (“to make”). See caldron.
Etymology from Wiktionary, CC BY-SA 4.0.