Where does “hasička” come from?

hasička (Czech) comes from Czech hasič, from Czech hasit, from Old Czech hasiti, from Proto-Slavic gasìti, from Proto-Indo-European gʷōs-eye-.

hasička (Czech): firewoman

Definitions

Step	Language	Word	Meaning
1	Czech	hasič	firefighter, fireman
2	Czech	hasit	to extinguish
3	Old Czech	hasiti	—
4	Proto-Slavic	gasìti	—
5	Proto-Indo-European	gʷōs-eye-	—

hasička — Etymology, Origin & Word History | Etymology Explorer