(male) From a Germanic word, karl, meaning ‘free man’, akin to Old English ceorl ‘man’. The name, Latin form Carolus, owed its popularity in medieval Europe to the Frankish leader Charlemagne (?742–814), who in 800 established himself as Holy Roman Emperor. His name (Latin Carolus Magnus) means ‘Charles the Great’. Carolus—or Karl, the German form—was a common name among Frankish leaders, including Charlemagne's grandfather Charles Martel (688–741). Charles is the French form. The name occurs occasionally in medieval Britain as Karolus or Carolus; it had a certain vogue in West Yorkshire from the 1400s, particularly among gentry families. The form Charles was chosen by Mary Queen of Scots (1542–87), who had been brought up in France, for her son, Charles James (1566–1625), who became King James VI of Scotland and, from 1603, James I of England. His son and grandson both reigned as King Charles, and the name thus became established in the 17th century both in the Stuart royal house and among English and Scottish supporters of the Stuart monarchy. In the 18th century it was to some extent favoured, along with James, by Jacobites, supporters of the exiled Stuarts, opposed to the Hanoverian monarchy, especially in the Highlands of Scotland. In the 19th century the popularity of the name was further enhanced by romanticization of the story of ‘Bonnie Prince Charlie’, leader of the 1745 rebellion.
Cognates: Irish: Séarlas. Scottish Gaelic: Teàrlach. Welsh: Siarl. German: Karl, Carl. Dutch: Karel, C(h)arel. Scandinavian: Karl. French: Charles. Spanish: Carlos. Catalan: Carles. Portuguese: Carlos. Italian: Carlo. Polish: Karol. Czech: Karel. Finnish: Kaarle. Hungarian: Károly. Lithuanian: Karolis.
English (but most common in Wales): from Lowis, Lodovicus, a Norman personal name composed of the Germanic elements hlod ‘fame’ + wīg ‘war’. This was the name of the founder of the Frankish dynasty, recorded in Latin chronicles as Ludovicus and Chlodovechus (the latter form becoming Old French Clovis, Clouis, Louis, the former developing into German Ludwig). The name was popular throughout France in the Middle Ages and was introduced to England by the Normans. In Wales it became inextricably confused with 2.
Welsh: from an Anglicized form of the personal name Llywelyn (see Llewellyn).
Irish and Scottish: reduced Anglicized form of Gaelic Mac Lughaidh ‘son of Lughaidh’. This is one of the most common Old Irish personal names. It is derived from Lugh ‘brightness’, which was the name of a Celtic god.
Americanized form of any of various like-sounding Jewish surnames.
FOREBEARS This name was brought independently to New England by many bearers from the 17th century onward. William Lewis was one of the founders of Hartford, CT, (coming from Cambridge, MA, with Thomas Hooker) in 1635. The explorer Meriwether Lewis (1774–1809) was a native of Albemarle Co., VA, where he was a neighbor of the Jeffersons, Randolphs, and other prominent families. His family also had plantations on the Broad River in Oglethorpe Co., GA. The Lewis family in VA date back to Robert Lewis, a native of Brecon, Wales, who settled in what is now Gloucester Co., VA, about 1635. Another early bearer of this very common British surname is Francis Lewis, a New York merchant and signer of the Declaration of Independence, who was born in 1713 in Llandaff, Glamorganshire, Wales.