Where does “rapp” come from?

rapp (Swedish) comes from Old Norse hrapa, from Proto-Germanic hrapaną, from Proto-Indo-European krb(ʰ)- — quickly.

rapp (Swedish): quick

Definitions

Step	Language	Word	Meaning
1	Old Norse	hrapa	to fall, rush headlong, hurry, hasten
2	Proto-Germanic	hrapaną	to fall down
3	Proto-Indo-European	krb(ʰ)-	quickly

rapp — Etymology, Origin & Word History | Etymology Explorer