passguard

Etymology
, used with the meaning "armor projecting up from a shoulder-piece" since a least the 1800s. It has been suggested that the application of the term (in both English and French) to neck guards is, however, an error, and that the original meaning was "elbow armor".

Noun

 * 1)  An L-shaped piece of armor worn over one arm (typically the left arm), which generally kept it in a bent position and protected it during jousts.
 * 2) A ridge or an additional plate on a shoulder piece, to turn the blow of a weapon away from the neck or joint of the armor.
 * 3) * 1846, Lincolnshire Architectural and Archaeological Society (LINCOLN), The first (second, fourth-sixth) report of the Lincolnshire Society for the Encouragement of Ecclesiastical Architecture, page 38:
 * -Cuirass rounded and projecting -passguards on the shoulders
 * 1) A ridge or an additional plate on a shoulder piece, to turn the blow of a weapon away from the neck or joint of the armor.
 * 2) * 1846, Lincolnshire Architectural and Archaeological Society (LINCOLN), The first (second, fourth-sixth) report of the Lincolnshire Society for the Encouragement of Ecclesiastical Architecture, page 38:
 * -Cuirass rounded and projecting -passguards on the shoulders
 * 1) * 1846, Lincolnshire Architectural and Archaeological Society (LINCOLN), The first (second, fourth-sixth) report of the Lincolnshire Society for the Encouragement of Ecclesiastical Architecture, page 38:
 * -Cuirass rounded and projecting -passguards on the shoulders
 * -Cuirass rounded and projecting -passguards on the shoulders

Translations

 * French:
 * German: Brechrand