Moluche or Nguluche is a dialect of the Mapuche

Mapuche

The Mapuche are a group of indigenous inhabitants of south-central Chile and southwestern Argentina. They constitute a wide-ranging ethnicity composed of various groups who shared a common social, religious and economic structure, as well as a common linguistic heritage. Their influence extended...

 language Mapudungun

Mapudungun

The Mapuche language, Mapudungun is a language isolate spoken in south-central Chile and west central Argentina by the Mapuche people. It is also spelled Mapuzugun and sometimes called Mapudungu or Araucanian...

 that is also the ethnic description of the Mapuche peoples speaking that language. At the beginning of the Conquest of Chile

Conquest of Chile

The Conquest of Chile is a period in Chilean historiography that starts with the arrival of Pedro de Valdivia to Chile in 1541 and ends with the death of Martín García Óñez de Loyola, in the Battle of Curalaba in 1598 or alternatively with the Destruction of the Seven Cities. This was the period...

 by the Spanish Empire

Spanish Empire

The Spanish Empire comprised territories and colonies administered directly by Spain in Europe, in America, Africa, Asia and Oceania. It originated during the Age of Exploration and was therefore one of the first global empires. At the time of Habsburgs, Spain reached the peak of its world power....

 the Moluche lived in what came to be known as Araucanía. The Moluche were called Araucanos ("Araucanians") by the Spanish.

Descendants of the Moluche and the Pehuenche

Pehuenche

Pehuenches are an indigenous people that are part of the Mapuche peoples and live in the Andes in south central Chile and Argentina. Their name derives from their habit of harvesting of piñones, the seeds of the Araucaria araucana or pehuén...

 and Huilliche

Huilliche

The Huilliche is an ethnic group of Chile, belonging to the Mapuche culture. They live in mountain valleys in an area south of Toltén River and on Chiloé Archipelago...

 later migrated into Argentina

Argentina

Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

 in later centuries mixing with the local tribes. This Araucanization

Araucanization

The Araucanization of Patagonia was the process of expansion of Mapuche culture, influence and language from Araucanía into the Patagonic plains. Historians disagree in the time of the expansion but it would have occurred sometime between 1550 and 1850. Amerindian peoples such as the Puelches and...

made their language the common spoken language in the region.