What does the aboriginal word for kangaroo mean?

It is a common myth that the Word "kangaroo" means "I don't understand what you're saying". The legend goes that early Australian settlers reportedly asked the indigenous people what the hopping creature was called. The native replied 'kangaru' which in his language meant 'I don't know' or 'I don't understand'.

According to reliable sources, the Word "kangaroo" is believed to have come from the Aboriginal Word gangurru, a Guugu Yimidhirr Word referring to the Grey Kangaroo. Captain James Cook's botanist, Sir Joseph Banks, first recorded the Word as "kangaru" when the Endeavour was damaged on the Great Barrier Reef near modern-day Cooktown, and required the crew to stay on the mainland for almost 7 weeks repairing their ship. This gave Banks ample time to make copious notes on the fauna and flora, and to be certain of the Aboriginal Word for kangaroo, even though he had trouble translating it into written form.