Le Bolze: Switzerland’s Fifth Language

However, head to medieval Basse-Ville, caught between the German- and French-speaking divisions of Fribourg, and you’ll find yourself in a no-man’s land where the two languages have become one: le Bolze. While the exact origins of the language are unknown, many believe that Bolze was created during the Industrial Revolution in the 19th Century, when people began to migrate from the countryside into cities as jobs became available during the industrial boom. (Audio and translation courtesy of Elise Morard of Fribourg Tourism)

Bolze is a conversational melding of Swiss German and French, using the two languages to create a completely new version.

Source: www.bbc.com