Verlan

Verlan (French pronunciation: [vɛʁlɑ̃]) is a type of argot in the French language, featuring inversion of syllables in a word, and is common in slang and youth language. It rests on a long French tradition of transposing syllables of individual words to create slang words.^: 50 The word verlan itself is an example of verlan (making it an autological word). It is derived from inverting the sounds of the syllables in l'envers ([lɑ̃vɛʁ], "the inverse", frequently used in the sense of "back-to-front"). The first documented use of verlan dates back to the 19th century, among robbers.