To reduce someone in rank or status; to lower someone's honor or reputation.
From dis- (reverse) + grade (from Latin gradus, 'step'). This verb form means to take away someone's grade or rank, moving them down the social or professional ladder.
Medieval courts actually had officers whose job was to 'disgrade' nobles—they would strip them of titles, symbols, and position as public punishment, making it a theatrical and humiliating process.
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