Maku language of Auari

Máku ['mako], also spelled Mako (Spanish Macú), and in the language itself Jukude, is an unclassified language and likely language isolate once spoken on the Brazil–Venezuela border in Roraima along the upper Uraricoera and lower Auari rivers, west of Boa Vista, by the Jukudeitse. 300 years ago, the Jukude territory was between the Padamo and Cunucunuma rivers to the southwest.

The last speaker, Sinfrônio Magalhães, died in 2000. There are currently no speakers or rememberers of Máku and no-one identifies as Jukude any longer. Aryon Rodrigues and Ernesto Migliazza, as well as Iraguacema Lima Maciel, worked on the language, and the data was collected into a grammar by Chris Rogers published in 2020.