gallet vs rend

gallet

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

verb
  • To use this masonry technique. 

rend

noun
  • A violent separation of parts. 

verb
  • To part or tear off forcibly; to take away by force; to amputate. 

  • To be rent or torn; to become parted; to separate; to split. 

  • To separate into parts with force or sudden violence; to split; to burst 

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