Where does “tun” come from?

tun (Inari Sami) comes from Proto-Samic tonë, from Proto-Uralic tinä — you, thou.

tun (Inari Sami): you

Definitions

Step	Language	Word	Meaning
1	Proto-Samic	tonë	you
2	Proto-Uralic	tinä	you, thou

tun — Etymology, Origin & Word History | Etymology Explorer