The term "Aborigine" was coined by white settlers in Australia in the 1830s from ab origine, a Latin phrase meaning "from the very beginning". The problem isn't with the word, but with the racial beleifs and attitudes of those who coined the word and the oppressive laws they inspired.

Aboriginal has been out of fashion in Tranada for about three decades now, but many organizations that serve Indigenous people still have the word Aboriginal in the title so you may have to say CBA A-word Law Conference or A-word Veterans Scholarship Trust etc until they get around to changing all the names.

It's like the NAACP in the US. It's not considered respectful to say "Colored People" anymore, but at one time it was considered respectful. The same with saying Indian in the States. (unless you're an Indigenous Hip Hop star. Then AB-Original, plays on the word, and NDN are all perfectly acceptable.) I wouldn't say much in a classroom in Tranada as practically anything you say outside current dogma is going to get you into trouble - especially if you know more about the subject than the instructor.