Charruan may actually consist of two or three unrelated families according to Nikulin (2019).[2] Nikulin notes that many of the following languages share very few basic vocabulary items with each other.
Four languages are considered to definitively belong to the Charruan language family, basically Chañá (Lanték), Nbeuá, Charrúa and Guenoa.[5] Nbeuá is thought to be a dialect of Chaná. A fourth language, Balomar, is claimed to exist by Loukotka (1968), but there is no data on it.[5]
Jorge Suárez includes Charruan with Guaicuruan in a hypothetical Waikuru-Charrúa stock. Morris Swadesh includes Charruan along with Guaicuruan, Matacoan, and Mascoyan within his Macro-Mapuche stock. Both proposals appear to be obsolete.
Vocabulary comparison
The Charruan languages are poorly attested. However, sufficient vocabulary has been gathered for the languages to be compared:[5][6]
^Larrañaga, Dámaso Antonio. 1923. Compendio del idioma de la nación chaná. In Escritos de D. Dámaso A. Larrañaga, tomo III, 163-174. Montevideo: Instituto Histórico y Geográfico del Uruguay, Imprenta Nacional.
^Hervás y Panduro, Lorenzo. 1787. Saggio Pratico delle lingue. (Idea dell'Universo, XXI.) Cesena: Gregorio Biasini all'Insengna di Pallade. 255pp.
^ abcdLoukotka, Čestmír (1968), Classification of South American Indian Languages, Los Angeles: UCLA Latin American Center