From Middle English whestone, whetston, whetesston, from Old English hwetstān, from Proto-Germanic *hwatjastainaz (“whetstone”), equivalent to whet (“to sharpen”) + stone. Cognate with Saterland Frisian Wätsteen (“whetstone”), West Frisian wetstien (“whetstone”), German Low German Wettsteen (“whetstone”), Dutch wetsteen (“whetstone”), German Wetzstein (“whetstone”), Danish hvættesten, hvætsten (“whetstone”).
whetstone (plural whetstones)
- A sharpening stone; a hard stone or piece of synthetically bonded hard minerals that has been formed with at least one flat surface, used to sharpen or hone an edged tool.
- (computing) A benchmark for evaluating the power and performance of a computer.
- (figuratively) A stimulant.