'fur' originates from Old French, specifically the word 'forrer,' where 'forrer' meant 'to line or cover with fur.'

'forrer' transformed into the Middle English word 'furren,' and eventually became the modern English word 'fur'.

Initially, it meant 'to line or cover with fur,' but over time it evolved into its current meaning of 'the coat of an animal or a garment made from it.'