IPA: /ˈvæmˌbreɪs/
KK: /ˈvæmˌbreɪs/
A piece of armor that is worn on the forearm to protect it during combat or battle.
The knight adjusted his vambrace before entering the tournament.
Vambrace → It originates from the Old French word *avant-bras*, where "avant" means (meaning before or front) and "bras" means (meaning arm). A vambrace is a piece of armor that protects the forearm, thus it is literally an arm guard worn on the front of the arm.
Imagine an arm guard worn on the 'front' ('avant') of your arm — that's why a vambrace is a protective piece for your forearm.