chamfer vs lop off

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. 

lop off

verb
  • To cut off as the top or extreme part of anything, especially to prune a small limb off a shrub or tree, or sometimes to behead someone. 

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