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Murato is the unattested but presumed language of the Uros of Lake Poopo in Bolivia (Adelaar 2004). The Murato have shifted to Aymara, but preserve some Uru vocabulary.
References
Alain Fabre 2005, "Uru-Chipaya", in: Diccionario etnolingüístico y guía bibliográfica de los pueblos indígenas sudamicanos. retrieved 2021/12/22.