'tailor' originates from Old French, specifically the word 'tailleur,' where 'taillier' meant 'to cut' (from Late Latin 'taliāre' meaning 'to cut').

'tailleur' changed through Anglo-Norman/Old French forms like 'taillour' and Middle English 'tailour,' and eventually became the modern English word 'tailor'.

Initially, it meant 'a cutter' or 'one who cuts cloth,' but over time it broadened to its current meanings of 'a person who makes or alters clothes' and the verb 'to customize or adapt.'