Where does “bʰolǵʰnis” come from?

bʰolǵʰnis (Proto-Indo-European) comes from Proto-Indo-European bʰelǵʰ-, from Proto-Indo-European bʰel-, from Proto-Indo-European bʰōl-.

Ancestry of “bʰolǵʰnis”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	bʰelǵʰ-	to swell
2	Proto-Indo-European	bʰel-	to sound; to speak, roar, bark; shiny, white; to...
3	Proto-Indo-European	bʰōl-	—

bʰolǵʰnis — Etymology, Origin & Word History | Etymology Explorer