The story
- Proto-Indo-European*ḱe?
- Proto-Indo-European*ḱóm
- Proto-Italic*kom
- Proto-Italic*kom-
- Latincon-
- Proto-Indo-European*bʰel-
- Proto-Italic*flagrosder.?
- Latinflagrō
- Latincōnflagrō
- Latincōnflagrātiō
- English todayconflagration
From Middle French, from Latin cōnflagrātiō (“burning, conflagration”).
Etymology from Wiktionary, CC BY-SA 4.0.