Where does “dotze” come from?

dotze (Old Occitan) comes from Vulgar Latin dodeci, from Latin duodecim, from Latin decem, from Latin -nus, from Proto-Italic -nos, from Proto-Indo-European -nós — Creates verbal adjectives from roots.

Ancestry of “dotze”, step by step

Step	Language	Word	Meaning
1	Vulgar Latin	dodeci	—
2	Latin	duodecim	twelve; 12; dozen
3	Latin	decem	ten; 10
4	Latin	-nus	-an
5	Proto-Italic	-nos	Creates verbal adjectives from verb stems
6	Proto-Indo-European	-nós	Creates verbal adjectives from roots

Words derived from “dotze”

dotzena

Every word from Proto-Indo-European -nós →Every word from Latin -nus →Every word from Latin decem →