What is "blitterlees"

Blitterlees is a small hamlet in the parish of Holme Low, one mile south of Silloth in Cumbria, United Kingdom. The hamlet of Wolsty is located approximately one mile to the south as the crow flies, or two-and-a-quarter miles by road, and Cumbria's county town, Carlisle, is located twenty-three miles to the east. The B5300, known locally as the "coast road", runs through the village on its way to Beckfoot, Mawbray, Allonby, and ultimately Maryport.