† ferruren.

Etymology: < French ferrure action of shoeing a horse (c1285 or earlier in Anglo-Norman, 1581 in continental French; c1150 in Old French as ferreüre in sense ‘iron casing, armour’) < ferrer to shoe (horses) (c1140; also in sense ‘to cover (an object) with iron’ (c1140); < post-classical Latin ferrare to shoe (horses) (frequently from 11th cent. in British sources) < classical Latin ferrum iron: see ferro- comb. form) + -ure -ure suffix¹. Compare post-classical Latin ferrura horse-shoeing, ironworking (frequently from 13th cent. in British sources). Compare earlier ferrurie n.Post-classical Latin ferrare is also recorded in the 6th-cent. grammarian Priscian, but there is no contextual evidence for the word until much later.