Subtiaba is an extinct

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...

 Oto-Manguean

Oto-Manguean languages

Oto-Manguean languages are a large family comprising several families of Native American languages. All of the Oto-Manguean languages that are now spoken are indigenous to Mexico, but the Manguean branch of the family, which is now extinct, was spoken as far south as Nicaragua and Costa Rica.The...

 language which was spoken on the Pacific slope of Nicaragua

Nicaragua

Nicaragua is the largest country in the Central American American isthmus, bordered by Honduras to the north and Costa Rica to the south. The country is situated between 11 and 14 degrees north of the Equator in the Northern Hemisphere, which places it entirely within the tropics. The Pacific Ocean...

. In 1925 Edward Sapir

Edward Sapir

Edward Sapir was an American anthropologist-linguist, widely considered to be one of the most important figures in the early development of the discipline of linguistics....

 wrote an article based on scant evidence arguing for the inclusion of Subtiaba in his hypothesized Hokan group. Others have linked Subtiaba to the Jicaque and Tol languages, but since Suárez's work it is generally accepted that Subtiaba is an Oto-Manguean language

Oto-Manguean languages

Oto-Manguean languages are a large family comprising several families of Native American languages. All of the Oto-Manguean languages that are now spoken are indigenous to Mexico, but the Manguean branch of the family, which is now extinct, was spoken as far south as Nicaragua and Costa Rica.The...

. When Sapir wrote about it in 1925 it was already very endangered or moribund.