IPA: /ˈbræsɑrd/
KK: /ˈbræsɑrd/
A band or badge that is worn around the upper arm, often used for identification or protection.
The soldier wore a brassard that indicated his rank.
Brassard originates from Old French 'brassard', which means a protective arm guard or sleeve. The term is derived from 'bras' (meaning arm) and the suffix '-ard', which is often used to denote a person associated with a particular quality or thing. Thus, a brassard is something related to the arm, specifically a protective covering for it.
Think of 'bras' meaning arm, and remember that a brassard is something that protects the arm.