The given name Everette is of English origin, derived from the Old English name Eoforheard, which means "brave as a wild boar." The name can be traced back to the Anglo-Saxon period in Britain, approximately between the 5th and 11th centuries AD.

Everette is a variant spelling of the more common name Everard, which was widely used during the Middle Ages in England. The name was particularly popular among the Norman nobility, and it is believed to have been introduced to England after the Norman Conquest in 1066.

One of the earliest recorded instances of the name Everette can be found in the Domesday Book, a comprehensive survey of land ownership and population commissioned by William the Conqueror in 1086. The name appears as "Everardus" in the records.

Throughout history, several notable individuals have borne the name Everette. One of the earliest was Everard des Barres (c. 1090-1150), a Norman nobleman and Grand Master of the Knights Templar from 1147 to 1151. Another prominent figure was Everard 't Serclaes (1592-1664), a Flemish nobleman and diplomat who served as the Governor of the Spanish Netherlands.

In the literary realm, Everette was the name of a character in the famous novel "The Portrait of a Lady" by Henry James, published in 1881. The character, Lord Everette, played a significant role in the story's plot.

During the 19th century, the name gained popularity in the United States, particularly in the Southern states. One notable bearer was Everette St. John (1834-1911), a Confederate soldier and lawyer from Louisiana who later served as the United States Ambassador to Venezuela.

Another influential figure was Everette Lee DeGolyer (1886-1956), an American geophysicist and businessman who made significant contributions to the oil industry. He was also an avid book collector and donated his extensive collection to the University of Oklahoma, which now houses the Everette L. DeGolyer Library.