Quechua

[kech-wah, -wuh] /ˈkɛtʃ wɑ, -wə/
noun, plural Quechuas (especially collectively) Quechua for 2.
1.
the language of the Inca civilization, presently spoken by about 7 million people in Peru, Ecuador, Bolivia, Chile, and Argentina.
2.
a member of an Indian people of Peru speaking Quechua.
Also, Kechua, Kechuan, Quechuan, Quichua.
British Dictionary definitions for Quechua

Quechua

/ˈkɛtʃwə/
noun
1.
(pl) -uas, -ua. a member of any of a group of South American Indian peoples of the Andes, including the Incas
2.
the language or family of languages spoken by these peoples, possibly distantly related to the Tupï-Guarani family
Derived Forms
Quechuan, Kechuan, Quichuan, adjective, noun
Word Origin and History for Quechua
n.

Indian people of Peru and surrounding regions, 1811, from Spanish, from Quechua kechua "plunderer, destroyer." Also the name of their language. Related: Quechuan.