rerebrace means armour for the upper part of the arm. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Etymology
From Middle English rerebrace; compare French arrière-bras.
noun
- Armour for the upper part of the arm.“This rim involved a raised rolled edge on the rerebrace that was inserted into a raised lip on the lower lame of the pauldron.”