Cruscate

J. R. R. Tolkien, «Guide to the Names in The Lord of the Rings» ha scritto:Folde. A Rohan name, to remain unaltered. The same word occurs in Eastfold, which should also remain unchanged (compare Eastemnet). This is Old English folde (Old Norse fold) ' earth, land, country', not connected either with the English verb fold, or with (sheep) fold. Compare Vestfold and Østfold in Norway.The Folde was the centre of the kingdom, in which the royal house and its kin had their dwellings; its boundary eastward was roughly a line South-west from the junction of the Snowbourn and Entwash to the mountains; the Eastfold was the land from that line east to the Fenmark between Entwash and the mountains; the Westfold was the similar land along the mountains as far as the River Isen. The defensive centre of the Folde and Eastfold was at Edoras; of Westfold at Helm's Deep.