Navajo yas

← Ahtna yaas (cognate)

← Proto-Athabaskan *yəx̣s (inherited)

← Beaver yas (cognate)

← Chipewyan yaθ (cognate)

← Carrier yvθ (cognate)

← Sekani yas (cognate)

← Sarcee zas (cognate)

→ Western Apache zas (link)

→ Navajo Yas Niłtʼees (mention)

→ Navajo yaskááʼ (mention)