Frayed
来自Big Physics
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late Middle English: from Old French freiier, from Latin fricare ‘to rub’.
wiktionary
From English fray, from Old French froiier(“to rub against, scrape; thrust against”), from Latin fricare(“to rub, rub down”).
etymonline
frayed (adj.)
"worn by rubbing," 1814, past-participle adjective from fray (v.).
