Where does “neptьjь” come from?
neptьjь (Proto-Slavic) comes from Proto-Balto-Slavic nep(ō)t-, from Proto-Indo-European népōts — grandson; descendant; nephew.
neptьjь (Proto-Slavic) comes from Proto-Balto-Slavic nep(ō)t-, from Proto-Indo-European népōts — grandson; descendant; nephew.