Eiderstedt Frisian

Eiderstedt Frisian (German: Eiderstedter Friesisch, Danish: Ejderstedfrisisk) was a dialect of the North Frisian language which was originally spoken on Eiderstedt, formerly part of the Danish Duchy of Schleswig.

The Frisian language became extinct on Eiderstedt in mid-18th century.

[1] In contrast to the northern hundreds, Eiderstedt was economically strong and wealthy and was oriented towards the southern, Low German parts of Holstein.

During the 16th century there was moreover a strong Dutch immigration.

The difference between the insular and the mainland dialects dates back to the Frisian immigrants during several different centuries.