The story
- Proto-Indo-European*ḱe?
- Proto-Indo-European*ḱóm
- Proto-Italic*kom
- Proto-Italic*kom-
- Latincon-
- Latinhaereō
- Latincohaereō
- Latincohaerēns
- Latincohaerentia
- Middle Frenchcoherence
- Englishcoherence
- English todaycoherin
From coher(ence) + -in.
Etymology from Wiktionary, CC BY-SA 4.0.