Where does “гръбъ” come from?

гръбъ (Old Church Slavonic) comes from Proto-Slavic *gъrbъ.

Ancestry of “гръбъ”, step by step

StepLanguageWordMeaning
1Proto-Slavic*gъrbъ—

Words derived from “гръбъ”

Every word from Proto-Slavic *gъrbъ →