Where does “कश्मीर” come from?

कश्मीर (Sanskrit) comes from Sanskrit कश्यपमीर, from Sanskrit कश्यप, from Proto-Indo-Aryan kaśyápas, from Proto-Indo-Iranian kaćyápas — turtle.

Ancestry of “कश्मीर”, step by step

Step	Language	Word	Meaning
1	Sanskrit	कश्यपमीर	—
2	Sanskrit	कश्यप	a tortoise; having black teeth
3	Proto-Indo-Aryan	kaśyápas	—
4	Proto-Indo-Iranian	kaćyápas	turtle

कश्मीर — Etymology, Origin & Word History | Etymology Explorer