Wallaroo is any of three closely related species of moderately large macropod, intermediate in size between the kangaroos and the wallabies, the  word "wallaroo" is from which Australian Aboriginal language of the Yuin–Kuric group that is spoken in the region of Sydney, New South Wales, "walaru"?
Wallaroo:  The word "wallaroo" is from Dharug "walaru".
i don't know