Where does “zřítit” come from?

zřítit (Czech) comes from Czech řítit, from Old Czech řútiti sě, from Proto-Slavic řutiti, from Proto-Indo-European h₃ér-.

zřítit (Czech): to collapse; to fall

Definitions

Step	Language	Word	Meaning
1	Czech	řítit	to career, hurtle, dash
2	Old Czech	řútiti sě	—
3	Proto-Slavic	řutiti	—
4	Proto-Indo-European	h₃ér-	—

zřítit — Etymology, Origin & Word History | Etymology Explorer