spur
UK: spɜː(r) | US: spɜːr
n. 1. A pointed device worn on a rider's heel to urge a horse forward.
n. 2. Something that prompts or encourages action; a stimulus.
vt. 1. To urge (a horse) forward with spurs.
vt. 2. To stimulate or prompt (someone) to act.
The word "spur" traces back to Old English spura or spora, meaning a pointed device for urging a horse. It shares roots with Old Norse spori and Proto-Germanic spuron, all relating to the concept of a sharp projection. Over time, "spur" evolved metaphorically to denote anything that incites action, reflecting its original function of prompting movement.
The knight dug his spur into the horse's flank to gallop faster.
Her criticism served as a spur for him to improve his work.
The coach spurred the team to victory with an inspiring speech.
Economic growth was spurred by new government policies.
He felt a sudden spur of adrenaline as the race began.