The impeller is a lenticular shield clutched between 50-60 cm in diameter. Own infants in training or, also, for duels. Its use over time is constant : from the Ancient Age to the Modern Age.
Even if it is not incorporated into Spanish, it can be "arm or protect with surround". Or a mistake to model, surround, rebel, . . .
It's building or crafting an enroll. It can be fabric on the head, to be able to place a heavy load and be able to carry it. In the old way, it was to place or use a metal impelet on the chest, to protect itself in sword fights.