'equip' originates from Old French, specifically the word 'equiper,' where 'es-' meant 'out' and 'kiper' meant 'to fit or prepare.'

'equiper' transformed into the Middle English word 'equypen,' and eventually became the modern English word 'equip.'

Initially, it meant 'to fit out or prepare,' but over time it evolved into its current meaning of 'to provide with necessary materials or tools.'