Where does “валъ” come from?

валъ (Old East Slavic) comes from Proto-Slavic valъ, from Proto-Indo-European wēlH-, from Proto-Indo-European welH- — to turn, to wind.

Ancestry of “валъ”, step by step

StepLanguageWordMeaning
1Proto-Slavicvalъroll, slump, downturn
2Proto-Indo-EuropeanwēlH-to roll, to undulate
3Proto-Indo-EuropeanwelH-to turn, to wind

Words derived from “валъ

Every word from Proto-Indo-European welH-Every word from Proto-Indo-European wēlH-Every word from Proto-Slavic valъ