break off vs gallet

break off

verb
  • To remove a piece from a whole by breaking or snapping 

  • To end abruptly, either temporarily or permanently. 

  • To end a relationship. 

gallet

verb
  • To use this masonry technique. 

noun
  • A splinter of stone inserted into the wet mortar of masonry. 

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