From náshdóítsoh (“cougar; puma”) (this being from náshdóí (“wildcat”) + -tsoh (“big”)) + bitsiiʼ (“his head”) + -jįʼ (“up to”) + da- (plural marker) + ditłʼo (“it is hairy”) + -ígíí (nominalizer).
Thus "hairy-headed puma"
náshdóítsoh bitsiijįʼ daditłʼooígíí