Where was the unclassified language of the people who were sometimes referred to as Cocos heard?
Karankawa language Karankawa is the extinct, unclassified language of the Texas coast, where the Karankawa people migrated between the mainland and the . It was not closely related to other known languages in the area, much of which are also poorly attested, and may have been a language isolate. A couple hundred words are preserved, collected in 1698, 1720, and 1828; in the 1880s, three lists were collected from non-Karankawa who knew some words.
Cora language Cora is an indigenous language of Mexico of the Uto-Aztecan language family. It is spoken by the ethnic group that is widely known as the Cora but who refer to themselves as "Naáyarite". The Cora inhabit the northern sierra of the Mexican state Nayarit which is named after its indigenous inhabitants. Cora is a Mesoamerican language and shows many of the traits defining the Mesoamerican Linguistic Area. Under the General Law of Linguistic Rights of the Indigenous Peoples it is recognized as a "national language" along with 62 other indigenous languages and Spanish which have the same "validity" in Mexico .