Filippo Salvatore Gilii (1721âÂÂ1789), also known as Felipe Salvador Gilij, was an Italian Jesuit priest known for his work in South American linguistics. GiliiâÂÂs work in the province of Venezuela, particularly along the Orinoco River, laid the foundation for much of what is known about the indigenous languages and cultures of the region, such as the Tamanaku.
Gilii was born on July 26, 1721, in Norcia, Umbria. He joined the Society of Jesus at the age of 20 and was subsequently sent to South America as a missionary. His mission took him to Venezuela, where he worked closely with Indigenous peoples along the Orinoco River. During his time there, Gilii immersed himself in the study of the local languages and cultures.
One of GiliiâÂÂs most significant contributions was his advanced understanding of the nature of languages. He recognized sound correspondences (e.g. between : : in the Cariban family) and predated philologist William Jones' third discourse suggesting genealogical relationships between languages. Unlike Jones, Gilii presented evidence in support of his hypothesis. For example, he proposed the Maipurean (Arawakan) language family in 1782.
He also discussed major concepts of linguistics such as areal features between unrelated languages, loanwords (among American languages and from American languages into European languages), word order, language death, language origins, and nursery forms of child language (i.e. Lallwörter) discussed by Roman Jakobson.
GiliiâÂÂs work included the identification of nine âÂÂmother languagesâ () spoken in the Orinoco area. His classification was one of the earliest proposals of South American language families and provided a framework for future linguistic studies in the region.
Gilii found that the languages spoken in the Orinoco area belonged to nine "mother languages", language families:
GiliiâÂÂs most notable work is , published in four volumes in 1780. This comprehensive work covered various aspects of the natural, civil, and sacred history of the Spanish provinces in mainland South America. In this work, Gilii discussed major concepts of linguistics such as areal features between unrelated languages, loanwords, word order, language death, language origins, and nursery forms of child language. His discussions on these topics were ahead of his time and laid the groundwork for future linguistic research.
In 1998, the Venezuelan government issued a commemorative stamp in his honor.
Gilii continued his scholarly work upon returning to Italy. He died in Rome in 1789.