chamfer vs serrate

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. 

serrate

verb
  • To cut or divide in a jagged way. 

  • To make serrate. 

adj
  • Of leaves: having tooth-like projections pointed away from the petiole. 

  • Having tooth-like projections on one side, as in a saw. 

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