The story
- Proto-Indo-European*gʷʰer-
- Proto-Indo-European*gʷʰermos
- Proto-Hellenic*kʷʰermós
- Ancient Greekθερμός (thermós)
- Englishthermo-
- Proto-Indo-European*dwóh₁
- Proto-Indo-European*trísinflu.
- Proto-Indo-European*d(w)is-
- Proto-Italic*dis-
- Latindis-
- Proto-Indo-European*bʰer-
- Proto-Indo-European*bʰéreti
- Proto-Italic*ferō
- Latinferō
- Latindifferō
- Latindifferēns
- Latindifferentia
- Proto-Indo-European*h₂el-
- Proto-Indo-European*h₂élisder.?
- Latindifferentiāli
- Englishdifferential
- English todaythermodifferential
From thermo- + differential.
Etymology from Wiktionary, CC BY-SA 4.0.