Did you mean Frisian?
Frisian
noun
°the language group (West Frisian, Saterland Frisian, and North Frisian) spoken by many people in the Dutch province of Friesland, some people in Northern Germany and in some parts of Denmark, mainly west coast.
°the West Frisian language.
adjective
°Of, or pertaining to, the Dutch province of Friesland, the Frisian people or the Frisian language.