Home › Words › M › missharpenmissharpenmissharpen means to sharpen incorrectly.EtymologyFrom mis- + sharpen.verbTo sharpen incorrectly.e.g.“It is our opinion that this missharpening and thus consequent misuse would be the basic and primary source of the failure.” — 1981, Charles O. Smith, Products Liability: Are You Vulnerable?, page 128:Definitions & examples from Wiktionary (CC BY-SA 3.0).