Where does “walˀstis” come from?

walˀstis (Proto-Balto-Slavic) comes from Proto-Indo-European h₂welh₁- — to rule; strong, powerful; hair; wool.

Ancestry of “walˀstis”, step by step

Step	Language	Word	Meaning
1	Proto-Indo-European	h₂welh₁-	to rule; strong, powerful; hair; wool

walˀstis — Etymology, Origin & Word History | Etymology Explorer