Where does “Белоус” come from?

Белоус (Russian) comes from Old East Slavic *бѣлоѫсъ, from Proto-Slavic *běloǫsъ, from Proto-Slavic bělъ, from Proto-Indo-European bʰēlHs — white surface or stain.

Белоус (Russian): matgrass (Nardus stricta)

Definitions

  1. matgrass (Nardus stricta)

Ancestry of “Белоус”, step by step

StepLanguageWordMeaning
1Old East Slavic*бѣлоѫсъ
2Proto-Slavic*běloǫsъwhite-moustached, whitebeard
3Proto-Slavicbělъwhite
4Proto-Indo-EuropeanbʰēlHswhite surface or stain

Words derived from “Белоус

Every word from Proto-Indo-European bʰēlHsEvery word from Proto-Slavic bělъEvery word from Proto-Slavic *běloǫsъ