is quite close,. Initially, they were considered by Martha Hardman (on very limited data at the time) to be different languages, but all subsequent fieldwork and research has contradicted that and demonstrated that they are mutually intelligible but divergent dialects of a single language. See also Quechuan and Aymaran spelling shift Bibliography Adelaar, Willem F. H.; & Muysken, Pieter C. (2004). The languages of the Andes. Cambridge language surveys. Cambridge University Press. Campbell, Lyle. (1997). American Indian languages: The historical linguistics of Native America. New York: Oxford University Press. . Kaufman, Terrence. (1994). The native languages of South America. In C. Mosley & R. E. Asher (Eds.), Atlas of the world's languages (pp. 46–76). London: Routledge. References Agglutinative languages Language families