What is "ulnaby"

Ulnaby is an abandoned village and scheduled ancient monument in the grounds of Ulnaby Hall Farm, near High Coniscliffe, County Durham, England. The toft village was occupied from the late-13th to the 16th century and temporary buildings were erected in the 19th century. Ulnaby Hall farm appears to have been built in the late-16th century, supplanting a high status medieval manorial enclosure associated with the original village. It is thought that the village shrank because of the change from labour-intensive arable farming to pasture, before being abandoned and the site was subsumed into the farm as pasture.