Where does “raigwō” come from?

raigwō (Proto-Germanic) comes from Proto-Indo-European reyk- — to tear, scratch; streak; to carve, scratch, etch.

Ancestry of “raigwō”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	reyk-	to tear, scratch; streak; to carve, scratch, etch

raigwō — Etymology, Origin & Word History | Etymology Explorer