fledge vs flitch

fledge

verb
  • To grow, cover or be covered with feathers. 

  • To complete the last moult and become a winged adult insect. 

  • To decorate with feathers. 

  • To care for a young bird until it is capable of flight. 

flitch

verb
  • To cut into, or off in, flitches or strips. 

noun
  • The flank or side of an animal, now almost exclusively a pig when cured and salted; a side of bacon. 

  • A piece or strip cut off of something else, generally a piece of wood (timber). 

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