To wear away or scrape the surface of something through friction or by rubbing harshly.
From Latin 'abradere': 'ab-' (away) + 'radere' (to scrape or scratch). The word entered Middle English from Old French and has meant to scrape or wear away since medieval times.
When you get a scraped knee, the pavement has literally abraded your skin—the same word used in factories describes the damage of everyday playground accidents.
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