An interesting thing about "carrefour" is that even though the second half of the word contains the number "four," it is actually the first half of the word that derives from the Latin word for "four." Carrefour derives via Middle French from Late Latin quadrifurcus, an adjective meaning "having four forks," formed by combining Latin quadri- ("four") and "furca" ("fork"). "Carrefour" has been a part of the English language since the 15th century. It once referred to an intersection of four roads at a single point, but later came to refer to any public square or plaza. "Carfax," a similar word that also derives from "quadrifurcus," can be found in some British place names, such as the primary intersection in the city of Oxford, England.