Je–Tupi–Carib (or TuKaJê ) is a proposed language family composed of the Macro-Je (or Macro-Gê), Tupian and Cariban languages of South America. Aryon Rodrigues (2000) based this proposal on shared morphological patterns. In an earlier proposal, Rodrigues (1985) had also proposed a Tupí-Cariban language family. The Je-Tupi-Carib proposal replaces earlier long-range hypotheses, e.g. Greenberg's phyla "Jê-Pano-Carib" (linking Macro-Je and Cariban to Panoan) and "Tupi-Arawak" (linking Tupian to Arawakan), or Mason's "Macro-Tupí-Guaranían" family (1950: 236–238) which groups Tupian together with Bora–Witoto and Zaparoan. However, in some cases, similarities among the language families are clearly due to more recent linguistic diffusion, as with Tupian and Jê languages (Timbira; Guajajara, Tembe, Guaja, Urubu-Ka'apor, etc.) in the lower Tocantins-Mearim area. Linguistic diffusion among Jê, Tupian, Cariban, Arawakan, and Trumai languages is also evident among the languages of the Xingu Indigenous Park.

Comparison

Nikulin (2015)

Comparison of Proto-Macro-Jê (with W = Proto-Western Macro-Jê; E = Proto-Eastern Macro-Jê), Proto-Tupí, and Proto-Karib from Nikulin (2015):

Nikulin (2019)

Jê-Tupí-Cariban basic vocabulary listed by Nikulin (2019):

Nikulin (2023)

Nikulin (2023) identifies the following cognates in Macro-Jê and Tupian as further evidence for a Macro-Jê–Tupian family. Non-cognate lookalikes or loans are identified by Nikulin (2023) as:

Macro-Chaco hypothesis

Nikulin (2019) suggests a Macro-Chaco hypothesis linking Jê-Tupí-Cariban (including Karirian and Bororoan) with Mataco-Guaicuruan (possibly including Zamucoan): In addition to likely shared morphology, there are also various possible Macro-Chaco shared basic vocabulary items, listed below. Reconstructed pronominal affixes of the protolanguages of the Macro-Chaco families are given in the following table: In this table the forms marked with (A) refer to ergative/agentive case, and the forms marked with (O) are referred to absolutive/patient/experiencer case.