Luiseño Language
The Luiseño language belongs to the Cupan group of Takic languages, within the major Uto-Aztecan family of languages. About 30 to 40 people speak the language.

Uto-Aztecan Language Family
Alternate Names: Uto, AztekanUto-Aztecan is a native american language family and is one of the largest (both in geographical extension and number of languages) and most well-established linguistic families of the Americas.
Uto-Aztecan languages are found from the Great Basin of the Western United States (Oregon, Idaho, Montana, Utah, California, Nevada, Arizona), through western, central and southern Mexico (including Sonora, Chihuahua, Nayarit, Durango, Zacatecas, Jalisco, Michoacán, Guerrero, San Luis Potosí, Hidalgo, Puebla, Veracruz, Morelos, Estado de México, and the Federal District), and into parts of Central America (Pipil in El Salvador; extinct varieties in Guatemala and Honduras).
Utah is named after the indigenous Uto-Aztecan Ute people. Classical Nahuatl, the language of the Aztecs, and its modern relatives are part of the Uto-Aztecan family.The similarities between the Uto-Aztecan languages were noted as early as 1859 by J.C.E. Buschmann.
However, Buschmann failed to recognize the genetic affiliation between the Aztecan branch and the Northern Uto-Aztecan languages, instead ascribing the similarities between the two groups to Aztec contact influence.
Brinton included the Aztecan languages in the linguistic family 1891 and coined the term Uto-Aztecan. The idea nonetheless remained controversial, and was rejected in Powell’s 1891 classification.
The Uto-Aztecan family was established through systematic work in the early 1900s by linguists such as Alfred L. Kroeber, who established the relations between the Shoshonean languages, and especially Edward Sapir, who proved the unity between Powell’s Sonoran and Shoshonean languages in a series of groundbreaking applications of the comparative method to unwritten Native American languages.
Most issues related to Uto-Aztecan subgrouping are uncontroversial. Six groupings are universally accepted as valid–the Numic, Takic, Pimic, Taracahitic, Corachol, and Aztecan branches–along with two ungrouped languages–Tübatulabal and Hopi. Higher level relations between these groups remain controversial.
The Sonoran branch (including Pimic, Taracahitic and Corachol) and Shoshonean branch (including Numic, Takic, Tübatulabal and Hopi) first postulated in the 19th century, in particular, are not accepted by a number of scholars.
Uto-Aztecan has been included in some long range proposals of linguistic super-families. A hypothesis proposed by Benjamin Lee Whorf relating Uto-Aztecan to Kiowa-Tanoan, in an Aztec-Tanoan family formerly had modest support, but Lyle Campbell (1997) and the great majority of modern specialists consider this hypothesis possible, but unproven (Mithun 1999).
Joseph Greenberg included Uto-Aztecan in his widely criticized and highly controversial Amerind macro-family along with all Native American linguistic families except for Eskimo-Aleut and Na-Dene.The Uto-Aztecan homeland is generally thought to have been somewhere in the Southwestern United States – Arizona, New Mexico or northern Mexico where the first split between Northern and Southern branches took place.
The homeland of the Numic branch has been placed near Death Valley, California and the Southern Uto-Aztecan languages are thought to have spread out from a place in north-western Mexico in southern Sonora or northern Sinaloa.
Many recent linguists have not accepted the validity of the division between Northern and Southern Uto-Aztecan as a genuine genetic branching. They have either recognized seven to nine independent branches of Uto-Aztecan or accepted Southern Uto-Aztecan but recognized four independent branches in the place of Northern Uto-Aztecan.
Hopi
Tübatulabal
Numic
Central Numic languages
Comanche
Timbisha (a dialect chain with main regional varieties being Western,Central, Eastern)
Shoshone (a dialect chain with main regional varieties being Western, Gosiute, Northern, and Eastern)
Southern Numic languages
Kawaiisu
Colorado River (a dialect chain with main regional varieties being Chemehuevi, Southern Paiute, and Ute)
Western Numic languages
Mono (two main dialects: Eastern and Western)
Northern Paiute (a dialect chain with main regional varieties being Southern Nevada, Northern Nevada, Oregon, and Bannock)
Takic
Serrano-Gabrielino
Serran
Serrano
Kitanemuk †
Gabrielino-Fernandeño †
Cupan
Cahuilla-Cupeño
Cahuilla
Cupeño
Luiseño-Juaneño
Southern Uto-Aztecan
Pimic (Tepiman)
Pima-Papago (Upper Piman)
Pima Bajo (Lower Piman)
Tepehuán languages (Northern and Southern)
Tepecano †
Taracahitic
Tarahumaran
Tarahumara
Guarijío (Varihio)
Tubar †
Cahita (Yaqui, Mayo Cahita)
Opatan
Ópata †
Eudeve †? (Heve, Dohema)
Corachol-Aztecan
Cora-Huichol
Cora
Huichol
Nahuan (Aztecan, Nahua, Nahuatlan)
Pochutec†
Core
Nahua
Pipil (Nahuate, Nawat)
Nahuatl (Mexicano, Aztec )
In addition to the above languages for which linguistic evidence exists, there were several dozen extinct languages with little or no documentation in Northern Mexico, many of which were probably Uto-Aztecan (Campbell 1997).
† = extinct
The Luiseño language belongs to the Cupan group of Takic languages, within the major Uto-Aztecan family of languages. About 30 to 40 people speak the language.
The Nicoleño were a Uto-Aztecan Native American tribe who lived on San Nicolas Island, California.
The Serrano belonged to the Shoshonean Division of the Uto-Aztecan linguistic stock.
The Tubatulabal Indians originally lived in three autonomous bands: the Pahkanapil, Palagewan, and Bankalachi, or Toloim. Tubatulabal was a subgroup of the Uto-Aztecan language family.
The Vanyume Indians belonged to the Shoshonean Division of the Uto-Aztecan linguistic stock. Their closest connections being probably with the Kitanemuk, and secondly with the Serrano.
The nearest connections of the Gabrielino were the Fernandeno; both belonged to the California branch of the Shoshonean Division of the Uto-Aztecan stock.