Uru of Chʼimu
Uru of Chʼimu is an extinct dialect of Uru or distinct Uru–Chipaya language once spoken by the Uros, an Amerindian people, who live on reed islands in Puno Bay in western Lake Titicaca in Peru.
Chʼimu Uru was first identified in 1929 by Lehmann, whose notes, comprising 324 words and some very basic grammatical notes, are in the Library of the Ibero-American Institute in Berlin. Torero claims that Uru of Chʼimu is the most divergent of the three Uru–Chipaya languages.