aboriginalEnglishOxford New American Dictionaryaboriginal /ˌabəˈrijənl, ˌæbəˈrɪdʒənl / ▸ adjective inhabiting or existing in a land from the earliest times or from before the arrival of colonists; indigenous. ▪ (Aboriginal) relating to the indigenous peoples of Australia or their languages. ▸ noun an aboriginal inhabitant of a place. ▪ (Aboriginal) a person belonging to one of the indigenous peoples of Australia. – ORIGIN mid 17th century : from Latin aborigines ‘original inhabitants’ (see aborigine) + -al.