Where does “*sūberus” come from?

*sūberus (Vulgar Latin) comes from Latin sūber, from Old High German sūbar, from Proto-West Germanic sūbrī, from Latin sōbrius, from Latin sē-, from Latin sex, from Proto-Italic seks, from Proto-Indo-European swéḱs — six.

Ancestry of “*sūberus”, step by step

StepLanguageWordMeaning
1Latinsūbercork oak, cork-tree
2Old High Germansūbarclean
3Proto-West Germanicsūbrīsober; clean
4Latinsōbriussober (not drunk)
5Latinsē-apart-; aside-; away
6Latinsexsix; 6
7Proto-Italicsekssix
8Proto-Indo-Europeanswéḱssix

Words derived from “*sūberus”

Every word from Proto-Indo-European swéḱs →Every word from Latin sē- →Every word from Proto-Italic seks →