'slash' originates from Old French, specifically the word 'esclachier,' where 'es-' meant 'out' and 'clachier' meant 'to break.'

'esclachier' transformed into the Middle English word 'slaschen,' and eventually became the modern English word 'slash.'

Initially, it meant 'to break or cut,' but over time it evolved into its current meanings of 'cutting with a sweeping motion' and 'reducing significantly.'