Abrade: to wear away by friction or erosion. The term "abrasion" comes from the verb abrade and is used in medicine to refer to an injury characterized by scraping or wearing away of tissue, most often on the skin. Synonyms include excoriate, scrape, scratch, rub raw, and chafe.
REFERENCE: Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.