Where does “роса” come from?

роса (Old Church Slavonic) comes from Proto-Slavic rosà, from Proto-Balto-Slavic rasā́ˀ, from Proto-Indo-European h₁rṓs — (trickling) liquid, moisture.

Ancestry of “роса”, step by step

StepLanguageWordMeaning
1Proto-Slavicrosàdew
2Proto-Balto-Slavicrasā́ˀdew
3Proto-Indo-Europeanh₁rṓs(trickling) liquid, moisture

Words derived from “роса”

Every word from Proto-Indo-European h₁rṓs →Every word from Proto-Balto-Slavic rasā́ˀ →Every word from Proto-Slavic rosà →