A bevor (/ˈbiːvər/ BEE-vər) or beaver[1][2] is a piece of plate armour designed to protect the neck, much like a gorget.
The word “bevor” or “beaver” is derived from Old French baver, meaning ‘to dribble’.
It was usually a single piece of plate armour protecting the chin and throat and filling the gap between the helmet and breastplate.
[1] The bevor could also extend over the knight’s left shoulder doubling the thickness of the armour.
[4] With the close helm and burgonet, developments of the sallet in the late medieval and Renaissance period, the bevor became a hinged plate protecting the lower face and throat.