Gilbertese (taetae ni Kiribati), also known as Kiribati (sometimes Kiribatese or Tungaru), is an Austronesian language spoken mainly in Kiribati. It belongs to the Micronesian branch of the Oceanic languages.
The word Kiribati, the current name of the islands, is the local adaptation of the European name "Gilberts" to Gilbertese phonology. Early European visitors, including Commodore John Byron, whose ships happened on Nikunau in 1765, had named some of the islands the Kingsmill or Kings Mill Islands or for the Northern group les îles Mulgrave in French but in 1820 they were renamed, in French, les îles Gilbert by Admiral Adam Johann von Krusenstern, after Captain Thomas Gilbert, who, along with Captain John Marshall, had passed through some of these islands in 1788.Frequenting of the islands by Europeans, Americans and Chinese dates from whaling and oil trading from the 1820s, when no doubt Europeans learnt to speak it, as Gilbertese learnt to speak English and other languages foreign to them. The first ever vocabulary list of Gilbertese was published by the French Revue coloniale (1847) by an auxiliary surgeon on corvette Le Rhin in 1845. His warship took on board a drift Gilbertese of Kuria, that they found near Tabiteuea. However, it was not until Hiram Bingham II took up missionary work on Abaiang in the 1860s that the language began to take on the written form known now.