←
Proto-Indo-Iranian *wálćas (inherited)
←
Proto-Indo-Aryan *wálśas (inherited)
←
Proto-Indo-European (inherited)
←
Proto-Indo-European *wel- (mention)
←
Lithuanian valaĩ (cognate)
←
Proto-Slavic *volsъ (cognate)
→
Finnish verso (cognate)
→
Russian волос (cognate)