To rub or chafe; to engage in friction or rubbing contact.
From Middle English 'froten' or Old French 'froter,' both meaning to rub. Related to 'friction' and the Latin 'fricare.'
The word 'frot' is quite rare in modern English, but its Latin root 'fricare' (to rub) gave us 'friction,' 'fray,' and even the word 'defraud'—all from the concept of rubbing or wearing away.
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