fleak vs gallet

fleak

noun
  • A thin piece that is chipped or peeled off from the surface of something else. 

  • A small, light piece that is only loosely joined to something else, and which has a tendency to detach. 

  • A thin piece that the flesh of some animals (such as fish) tends to break into. 

gallet

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

verb
  • To use this masonry technique. 

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