Where does “драпать” come from?

драпать (Russian) comes from Proto-Slavic drapati, from Proto-Slavic -pati.

Ancestry of “драпать”, step by step

Step	Language	Word	Meaning
1	Proto-Slavic	drapati	to scratch, to scrabble; to hightail, to flee; to...
2	Proto-Slavic	-pati	—