The story
- Proto-Indo-European*upó
- Proto-Italic*supo
- Latinsub
- Latinsub-
- Englishsub-
- Proto-Indo-European*ḱe?
- Proto-Indo-European*ḱóm
- Proto-Italic*kom
- Proto-Italic*kom-
- Latincon-
- Proto-Indo-European*welH-
- Proto-Italic*wolwō
- Latinvolvō
- Latinconvolvō
- Latinconvolūtus
- Englishconvolute
- English todaysubconvolute
Etymology from Wiktionary, CC BY-SA 4.0.