Mongolian адуу

← Evenki абду (cognate)

← Turkish at (cognate)

← Turkish aygır (cognate)

← Proto-Turkic *hat (cognate)

← Proto-Turkic *aðgɨr (cognate)

← Proto-Tungusic *abdu (cognate)

→ Mongolian адгуус (suffix)

→ Mongolian дэл (link)