Where does “sina” come from?

sina (Ludian) comes from Proto-Finnic cinä, from Proto-Uralic tinä — you, thou.

sina (Ludian): you

Definitions

Step	Language	Word	Meaning
1	Proto-Finnic	cinä	you
2	Proto-Uralic	tinä	you, thou

sina — Etymology, Origin & Word History | Etymology Explorer