Maratino is a barely attested extinct language

Extinct language

An extinct language is a language that no longer has any speakers., or that is no longer in current use. Extinct languages are sometimes contrasted with dead languages, which are still known and used in special contexts in written form, but not as ordinary spoken languages for everyday communication...

 that was spoken in north-east Mexico

Mexico

The United Mexican States , commonly known as Mexico , is a federal constitutional republic in North America. It is bordered on the north by the United States; on the south and west by the Pacific Ocean; on the southeast by Guatemala, Belize, and the Caribbean Sea; and on the east by the Gulf of...

, near Martín, Tamaulipas. Swanton, who called it 'Tamaulipeco', classified it as Uto-Aztecan based on a few obvious cognates, such as Maratino chiguat 'woman' ~ Nahuatl

Nahuatl

Nahuatl is thought to mean "a good, clear sound" This language name has several spellings, among them náhuatl , Naoatl, Nauatl, Nahuatl, Nawatl. In a back formation from the name of the language, the ethnic group of Nahuatl speakers are called Nahua...

cihuātl 'woman' and peyot 'peyote' ~ Nahuatl peyotl, but other scholars have not considered this to be enough to classify the language.