Where does “ptát” come from?

ptát (Czech) comes from Old Czech [[ptáti]], [[pýtati]], from Proto-Slavic pȳtàti — to ask, examine.

ptát (Czech): to ask

Definitions

Step	Language	Word	Meaning
1	Old Czech	[[ptáti]], [[pýtati]]	—
2	Proto-Slavic	pȳtàti	to ask, examine

ptát — Etymology, Origin & Word History | Etymology Explorer