Clothes

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Old English clāthas, plural of clāth (see cloth).

wiktionary

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From Middle English clothes, cloþes, plural of cloth, cloþ(“cloth, garment”), from Old English clāþas(“clothes”), plural of clāþ(“cloth”), equivalent to cloth +‎ -s. Cognate with Scots clathes, claes(“clothes”), Danish klæder, Norwegian Bokmål klær, Norwegian Nynorsk klede.

clothe +‎  -s

etymonline

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clothes (n.)

Old English claðas "cloths; garments for the body," originally the plural of clað "cloth" (see cloth), which, in 19c., after the sense of "article of clothing" had mostly faded from it, acquired a new plural form, cloths, to distinguish it from this word. Clothes-hanger attested from 1860.