Where does “Tashkent” come from?

Tashkent comes from Russian Ташкент, from Uzbek Toshkent, composed of Uzbek tosh and Proto-Turkic diāĺ.

Ancestry of “Tashkent”, step by step

Step	Language	Word	Meaning
1	Russian	Ташке́нт	—
2	Uzbek	Toshkent	—
3	Chagatai	تاشکند	—
4	Persian	کند	blunt; dull; slow
5	Sanskrit	खण्ड	chip, piece, slice, bit, portion, fragment;...

Tashkent — Etymology, Origin & Word History | Etymology Explorer