'curfew' originates from Old French, specifically the word 'couvre-feu,' where 'couvre' meant 'cover' and 'feu' meant 'fire.'

'couvre-feu' transformed into the Middle English word 'curfeu,' and eventually became the modern English word 'curfew'.

Initially, it meant 'covering the fire,' but over time it evolved into its current meaning of 'a regulation requiring people to remain indoors during designated hours.'