Caquetío language
Caquetío is an extinct Arawakan language family. The language was spoken along the shores of Lake Maracaibo, in the coastal areas of the Venezuelan state of Falcón, and on the Dutch islands of Aruba, Bonaire and Curaçao. The Caquetíos and the Jirajara spoke an Arawak language, and their cultures showed great similarities. Arawak or Caquetío is referred to as a "ghost language" because no tangible evidence of it remains. Only the name still exists, as mentioned in references from 17th-century texts. Name 
An important discovery was the term kakïtho used by Lokono to refer to "people" or "living beings", which encompasses a broader meaning than the term loko. The Lokono term "kakïtho" is derived from the Caquetío kaketío, and both can be traced back to Pre-Andes Maipuran terms for "person". The Piro (Yine language) and Irupina respectively use the terms kaxiti and kakiti to designate "people". Given the widespread use of this term, it is believed to have originated from Proto-Maipuran. Some suggest that the name "Caquetío" may have originated from the Caqueta River. The misspeling of "Caquetío" as "Caiquetio" stems from an early Spanish document. In the 16th and 17th centuries, the collection and study of indigenous languages were irregular, lacking a systematic approach. There are no remaining documents specifically dedicated to the syntax or grammar of Arawak languages from that time. It was only in the late 18th century that linguists began to study and classify Arawak languages. Origin 
Around 5000 BCE, the Proto-Equatorial language emerged in Peru and Ecuador, specifically near the Madre de Dios and Ucayali rivers, close to the source of the Amazon River. This language led to two distinct language families: Tupí-Guaraní, which moved southward, and the Arawak family, which migrated northward. By about 3500 BCE, the Proto-Arawak language appeared in the Amazon region and the northern sources of the Río Negro area. Between 3000 and 2000 BCE, speakers of the Proto-Arawak language journeyed along the Río Negro. They navigated the Casiquiare canal and settled in the Orinoco River area. This migration gave rise to the Proto-Arawak language and the formation of the Proto-Maipuran language. Around 1500 BCE, they arrived in the Middle Orinoco region near the Meta River, initiating diverse subgroups. Notably, the Proto-Northern subgroup, the ancestral roots of the Caquetío people, emerged. These subgroups dispersed in various directions from the Middle Orinoco. Some traveled west via the Meta River to the Venezuelan Andes and Colombia, leading to the emergence of the Guajiro and Paraujano languages. Others continued downstream along the Orinoco, expanding into the Guianas and the West Indian islands. This expansion gave rise to the Arawak language (also known as Lokono) in the Guianas, and the Igneri language, which transformed into Island Carib in the Lesser Antilles. The Proto-Northerners who settled in the Greater Antilles developed the † Taíno language. Around 500 BCE, the Caquetío language group separated from the Middle to Upper Orinoco areas, migrated alongside the Apure River, and headed northwest to Venezuela. Eventually, they reached the islands of Aruba, Bonaire, and Curaçao. Simultaneously, other groups like the Carib, Lokono, and Taíno evolved due to migrations from the Orinoco to the Caribbean region. Sources

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Arawakan languages
Languages of Venezuela
Languages of the Netherlands
Languages extinct in the 1860s
Indigenous languages of the Caribbean
Languages of Aruba
Languages of Bonaire
Languages of Curaçao