chamfer vs decorticate

chamfer

verb
  • To cut off the edge or corner of something. 

  • To cut a groove in something. 

noun
  • An obtuse-angled relief or cut at an edge added for a finished appearance and to break sharp edges. 

decorticate

verb
  • To peel or remove the bark, husk, or outer layer from something. 

  • To surgically remove the surface layer, membrane, or fibrous cover of an organ etc. 

adj
  • Having had the cortex removed 

How often have the words chamfer and decorticate occurred in a corpus of books? (source: Google Ngram Viewer )