The Macro-Siouan languages are a proposed

language family A language family is a group of languages related through descent from a common ''ancestral language'' or ''parental language'', called the proto-language of that family. The term "family" reflects the tree model of language origination in hist ...

that would include the

Siouan Siouan or Siouan–Catawban is a language family of North America that is located primarily in the Great Plains, Ohio and Mississippi valleys and southeastern North America with a few other languages in the east. Name Authors who call the entire ...

Iroquoian The Iroquoian languages are a language family of indigenous peoples of North America. They are known for their general lack of labial consonants. The Iroquoian languages are polysynthetic and head-marking. As of 2020, all surviving Iroquoian la ...

, and

Caddoan The Caddoan languages are a family of languages native to the Great Plains spoken by tribal groups of the central United States, from present-day North Dakota south to Oklahoma. All Caddoan languages are critically endangered, as the number of sp ...

families. Most linguists remain unconvinced that these languages share a genetic relationship, and the existence of a Macro-Siouan language family remains a subject of debate. In the 19th century, Robert Latham suggested that the Siouan languages are related to the

and

Iroquoian languages The Iroquoian languages are a language family of indigenous peoples of North America. They are known for their general lack of labial consonants. The Iroquoian languages are polysynthetic and head-marking. As of 2020, all surviving Iroquoian la ...

. In 1931, Louis Allen presented the first list of systematic correspondences between a set of 25 lexical items in Siouan and Iroquoian. In the 1960s and 1970s,

Wallace Chafe Wallace Chafe (; September 3, 1927 – February 3, 2019) was an American linguist. He was Professor Emeritus and research professor at The University of California, Santa Barbara. Biography Chafe was born in Cambridge, Massachusetts. He was a ...

further explored the link between Siouan and Caddoan languages. In the 1990s,

Marianne Mithun Marianne Mithun (born 1946) is an American linguist specializing in American Indian languages and language typology. She is professor of linguistics at the University of California at Santa Barbara, where she has held an academic position since 19 ...

compared the morphology and syntax of all the three families. At present, the Macro-Siouan hypothesis based on relations among Siouan, Caddoan, and Iroquoian is not universally accepted as proven.Mithun, Marianne. 1999. ''The languages of native North America''. p.305. Cambridge, UK: Cambridge University Press.

Notes

Bibliography

*Campbell, Lyle (1997).
American Indian Languages: The Historical Linguistics of Native America
'. Oxford: Oxford University Press. Proposed language families {{indigenousAmerican-lang-stub