Where does “काश्मीर” come from?

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

Ancestry of “काश्मीर”, step by step

StepLanguageWordMeaning
1Sanskritकश्मीर—
2Sanskritकश्यपमीरKashmir
3Sanskritकश्यपa tortoise; having black teeth
4Proto-Indo-Aryankaśyápas—
5Proto-Indo-Iraniankaćyápasturtle
Every word from Proto-Indo-Iranian kaćyápas →Every word from Proto-Indo-Aryan kaśyápas →Every word from Sanskrit कश्यप →