Kashubian or Cassubian (Kashubian: kaszëbsczi jãzëk, Polish: język kaszubski) is a West Slavic lect belonging to the Lechitic subgroup along with Polish and Silesian. Although often classified as a language in its own right, it is sometimes viewed as a dialect of Pomeranian or as a dialect of Polish.
In Poland, it has been an officially recognized ethnic-minority language since 2005. Approximately 108,000 people use mainly Kashubian at home. It is the only remnant of the Pomeranian language. It is close to standard Polish with influence from Low German and the extinct Polabian and Old Prussian.
The Kashubian lect exists in two different forms: low-prestige vernacular dialects used by older generations in rural areas, and the Kashubian literary standard prescribed in education. The codification of a Kashubian standard language was completed by the beginning of the 21st century.