Where does “dean” come from?

dean (Friulian) comes from Late Latin decanus, from Latin decem, from Latin -nus, from Proto-Italic -nos, from Proto-Indo-European -nós — Creates verbal adjectives from roots.

dean (Friulian): dean; doyen

Definitions

dean; doyen

Ancestry of “dean”, step by step

Step	Language	Word	Meaning
1	Late Latin	decanus	chief of ten people; dean; chief of ten people;...
2	Latin	decem	ten; 10
3	Latin	-nus	-an
4	Proto-Italic	-nos	Creates verbal adjectives from verb stems
5	Proto-Indo-European	-nós	Creates verbal adjectives from roots

Every word from Proto-Indo-European -nós →