Proto-Tupian (PT) is the reconstructed common ancestor of all the Tupian languages. It consists, therefore, of a hypothetical language, reconstructed by the comparative method from data of the descendant languages.
In Brazil, Tupian historical-comparative studies are being developed mainly by two scientific teams: one from the Laboratório de Línguas Indígenas (LALI) of the University of Brasília, under the coordination of Aryon Rodrigues; and the other one from the Museu Paraense Emílio Goeldi, located in Belém, under the orientation of Denny Moore. These studies provide evidence about the Proto-Tupian economy and culture, suggesting, for example, that they had agriculture.[1]
Rodrigues (2007) considers the Proto-Tupian linguistic homeland to be somewhere between the Guaporé and Aripuanã rivers, in the Madeira River basin. Much of this area corresponds to the modern-day state of Rondônia, Brazil. Five of the ten Tupian branches are found in this area, as well as some Tupi–Guarani languages (especially Kagwahiva), making it the probable linguistic homeland of these languages and maybe of the peoples that traditionally speak them. Rodrigues believes that Proto-Tupian dates back to around 5000 BP.
O'Hagan (2014)[2] proposes that Proto-Tupi-Guarani was spoken in the region of the lower Tocantins and Xingu Rivers. Proto-Omagua-Kokama then expanded up the Amazon River, Proto-Tupinamba expanded south along the Atlantic coast, and the Southern branch expanded up along the Tocantins/Araguaia River towards the Paraná River basin.
Lexicon
This section lists Proto-Tupían reconstructions from Rodrigues and Cabral (2012). Since the reconstructions are highly tentative, the Proto-Tupían forms are all marked by two asterisks.[3]
For a list of Proto-Tupian reconstructions by Nikulin (2020),[4] see the corresponding Portuguese article.
^ abcdeRodrigues, Aryon Dall'Igna; Cabral, Ana Suelly Arruda Câmara (2012). "Tupían". In Grondona, Verónica; Campbell, Lyle (eds.). The Indigenous Languages of South America. The World of Linguistics. Vol. 2. Berlin: De Gruyter Mouton. pp. 495–574. ISBN9783110255133.
Rodrigues, Aryon Dall'Igna (2007). "As consoantes do Proto-Tupí". In Ana Suelly Arruda Câmara Cabral, Aryon Dall'Igna Rodrigues (eds). Linguas e culturas Tupi, p. 167-203. Campinas: Curt Nimuendaju; Brasília: LALI.