Beaver (2)

Bea″ver, n. [OE. baviere, bauier, beavoir, bever; fr. F. bavière, fr. bave slaver, drivel, foam, OF., prattle, drivel, perh. orig. an imitative word. Bavière, according to Cotgrave, is the bib put before a (slavering) child.] That piece of armor which protected the lower part of the face, whether forming a part of the helmet or fixed to the breastplate. It was so constructed (with joints or otherwise) that the wearer could raise or lower it to eat and drink.