Where does “baškirský” come from?

baškirský (Czech) comes from Czech Baškir, from Russian башки́р, from Bashkir башҡорт, from Proto-Turkic baĺč — head; beginning.

Ancestry of “baškirský”, step by step

Step	Language	Word	Meaning
1	Czech	Baškir	Bashkir
2	Russian	башки́р	—
3	Bashkir	башҡорт	Bashkir
4	Proto-Turkic	baĺč	head; beginning

baškirský — Etymology, Origin & Word History | Etymology Explorer