n.
  - a coarse file for use on metal, wood, or other hard material.
 - a harsh, grating noise.
 
v.
  - (of a rough surface or object) scrape in a painful or unpleasant way. 
▸make a harsh, grating noise.
 - file with a rasp.
 
 
  Derivative
  
    - rasper n.
  - rasping adj.
  - raspingly adv.
  - raspy adj.
 
   
  Etymology
  ME (as v.): from OFr. rasper, perh. of Gmc origin.