'spur' originates from Old English, specifically the word 'spura,' where 'spur' meant 'a pointed device on a rider's heel.'

'spura' transformed into the Middle English word 'spure,' and eventually became the modern English word 'spur.'

Initially, it meant 'a pointed device on a rider's heel,' but over time it evolved into its current meaning of 'to urge or encourage someone to do something.'