Where does “pògrepsti” come from?

pògrepsti (Serbo-Croatian) comes from Serbo-Croatian grȅpsti, from Slavic *greti, from Proto-Balto-Slavic grebtei, from Proto-Indo-European *gʰrebh₂- — to seize, grab.

Ancestry of “pògrepsti”, step by step

Step	Language	Word	Meaning
1	Serbo-Croatian	grȅpsti	to scrape, scratch
2	Slavic	*greti	—
3	Proto-Balto-Slavic	grebtei	—
4	Proto-Indo-European	*gʰrebh₂-	to seize, grab

Every word from Proto-Indo-European *gʰrebh₂- →Every word from Proto-Balto-Slavic grebtei →Every word from Slavic *greti →