An alternative or variant spelling of brassard; a piece of arm armor in medieval times.
Variant spelling of 'brassard,' from Old French, with '-art' being a different suffix ending that was sometimes used interchangeably with '-ard' in medieval English.
Medieval spelling wasn't standardized, so you'd find the same piece of armor called 'brassard' and 'brassart' in different texts—even knights probably didn't care what you called their arm protection as long as it kept arrows out!
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