Kunza language
Kunza is an extinct language isolate once spoken in the Atacama Desert of northern Chile and southern Peru by the Atacama people, who have since shifted to Spanish. The last speaker was documented in 1949. Other names and spellings include Cunza, Likanantaí, Lipe, Ulipe, and Atacameño. History. The language was spoken in northern Chile and southern Peru, specifically in the Chilean villages of Peine, Socaire (near the Salar de Atacama), and Caspana. The last Kunza speaker was found in 1949, although some have been found since according to anthropologists. There are 2,000 Atacameños (W. Adelaar). Unattested varieties listed  by Loukotka (1968): Classification. Kaufman (1990) found a proposed connection between Kunza and the likewise unclassified Kapixaná to be plausible; however, the language was more fully described in 2004, and the general consensus among linguists was that both languages are isolates. Language contact. Jolkesky (2016) notes that there are lexical similarities with the Mochika, Kandoshi, Jaqi, Kechua, Mapudungun, and Uru-Chipaya language families due to contact.