Synonyms for Quechua (same or very similar meaning)
WordNet sense 1 (a member of a South American Indian people in Peru who were formerly the ruling class of the Inca empire):
KechuaWordNet sense 2 (the language of the Quechua which was spoken by the Incas):
Kechuan, Quechuan, Quechuan languageFrom the ODE community, based on WordNetadd/edit