Khakas оол

← Southern Altai уул (cognate)

← Shor оол (cognate)

← Dolgan уол (cognate)

← Tofa оол (cognate)

← Kazakh ұл (cognate)

← Yakut уол (cognate)

← Turkish oğul (cognate)

← Proto-Turkic *ogul (inherited)

← Tuvan оол (cognate)