Where does “wrembh-” come from?

wrembh- (Proto-Indo-European) comes from Proto-Indo-European werbh-, from Proto-Indo-European wer- — to burn; to cover, heed, notice; squirrel.

Ancestry of “wrembh-”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	werbh-	to turn, twist, bend
2	Proto-Indo-European	wer-	to burn; to cover, heed, notice; squirrel

wrembh- — Etymology, Origin & Word History | Etymology Explorer