Where does “blikja” come from?

blikja (Old Norse) comes from Proto-Germanic blīkaną, from Proto-Indo-European bʰel-, from Proto-Indo-European bʰōl-.

Ancestry of “blikja”, step by step

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

blikja — Etymology, Origin & Word History | Etymology Explorer