Where does “ḱom-olo-” come from?

ḱom-olo- (Proto-Indo-European) comes from Proto-Indo-European ḱem- — to cover, conceal; hornless.

Ancestry of “ḱom-olo-”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	ḱem-	to cover, conceal; hornless

ḱom-olo- — Etymology, Origin & Word History | Etymology Explorer