West Frisian language

West Frisian (Frysk) is a language spoken mostly in the province of Fryslân in the north of the Netherlands. West Frisian is the name by which this language is usually known outside of the Netherlands, to distinguish it from the closely related languages of East Frisian and North Frisian, which are spoken in Germany. Within the Netherlands, however, the term West Frisian is used to indicate a Dutch dialect (West Frisian dialect) spoken in the province of North Holland, while the language of the province of Fryslân is virtually always just called Frisian: Fries in Dutch, and Frysk in Frisian. The 'official' name used by linguists in the Netherlands to indicate the West Frisian language is Westerlauwers Fries (West Lauwers Frisian), the Lauwers being a border stream which separates the Dutch provinces of Fryslân and Groningen.
See more at Wikipedia.org...

West Frisian (called Westfries in Dutch) was a language which was spoken in the historical region West Friesland. The language was a creole language, a mix of Dutch and the Frisian-language. Not to be confused with the spoken language of the Friesland province internationally indicated with the name West Frisian language (in Dutch simply Fries) although they are related to each other. Therefore the Dutch name Westfries is sometimes used in English.
See more at Wikipedia.org...