vambrace

noun

1. (historical)The piece of armor designed to protect the arm from the elbow to the wrist.
2. (historical)The pieces of armor protecting the arm from the shoulder to the wrist.

   “To the cuirass were buckled the armour for the shoulders and arms, the first called Pouldrons, the second Brassarts, Garde bras, les avant bras, and corruptly in English, Vambraces. The vambraces included all the defence for the arms, from the pouldrons to the wrist. At the joint, or bending of the arm, the vambraces were cut obliquely, […]”

   “Thorin reached out for the vambrace and gauntlet that made up the armour's right arm.”