What is "vatnahverfi"

Vatnahverfi was a district in the Norse Greenlanders’ Eastern Settlement and is generally regarded by archaeologists and historians as having the best pastoral land in the colony. The Norse settled the district in the late 10th century and farmed there for nearly 500 years before mysteriously disappearing, likely at some point in the latter 15th century, along with all the other settlements in Greenland. Its name is roughly translated as “Land of Waters” or "Water District," alluding to its many inland lakes.