Marrgu (Marrku) is a recently extinct Aboriginal language of northern Australia. Additional names include Ajokoot, Croker Island, Raffles Bay, Terrutong (Terutong), Yaako (Jaako, Yako). Classification Marrgu had been assumed to be an Iwaidjan language like its neighbours. However, Evans (2006) has produced evidence that it was a language isolate, with possible connection to the extinct and poorly attested Wurrugu. This connection however is merely theoretical. Phonology Consonant inventory Vowels Marrgu had the three-vowel (/a/, /i/, /u/) system typical of Iwaidjan languages (Evans 1998). References Marrku–Wurrugu languages Extinct languages of the Northern Territory