Jisp, in older forms Gispe (1328, 1387), Gyspe (1344), is named after a river with the same name, that had an open connection to the
North Sea. Its river name is a composite of 'gis' and 'apa'. The first part means 'gisten',
to foam. The second part has the meaning of
water, indicating a place where by tidal influences
foaming water occurred. River names containing 'apa' have possibly a prehistoric and
Celtic origin, dating back to a period where humans did only live in the area in certain periods of the year to herd their cattle. Jisp is a former
whaling village. It used to be an island in the
Zuiderzee. It was a separate municipality until 1991, when it merged with
Wormer and
Wijdewormer to form the new municipality of
Wormerland. ==Geography==