chamfer vs incise

chamfer

verb
  • To cut a groove in something. 

  • To cut off the edge or corner of something. 

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

incise

verb
  • To cut in or into with a sharp instrument; to carve; to engrave. 

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