Aborigine, the noun specifically meaning “an Indigenous inhabitant of Australia,” is an outdated and often offensive term: Don't say the Aborigines of Melbourne and Sydney. Instead, use the related adjective Aboriginal, which is preferred and acceptable, and say, the Aboriginal Australians of Melbourne and Sydney. Similarly, the noun use of Aboriginal with specific reference to Australia is also often offensive, as in Australian Aboriginals. Again, you can use the adjectival form: Aboriginal Australians.

ab origine

adverb