Where does “सूरज” come from?

सूरज (Hindi) comes from Sanskrit सूर्य, from Sanskrit सर, from Proto-Indo-European srew-, from Proto-Indo-European ser- — to flow; to guard; to bind, to tie together.

सूरज (Hindi): Sun

Definitions

Ancestry of “सूरज”, step by step

Step	Language	Word	Meaning
1	Sanskrit	सूर्य	the sun; solar
2	Sanskrit	सर	string, cord; flowing
3	Proto-Indo-European	srew-	to flow, stream
4	Proto-Indo-European	ser-	to flow; to guard; to bind, to tie together

Words derived from “सूरज”

Suraj
सूरजमुखी

Every word from Proto-Indo-European ser- →Every word from Proto-Indo-European srew- →Every word from Sanskrit सर →