Where does “km̥H-el-i-” come from?

km̥H-el-i- (Proto-Indo-European) comes from Proto-Indo-European kemH- — to hum.

Ancestry of “km̥H-el-i-”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	kemH-	to hum

km̥H-el-i- — Etymology, Origin & Word History | Etymology Explorer