bleat vs girn

bleat

verb
  • Of a person, to complain. 

  • Of a sheep or goat, to make its characteristic cry; of a human, to mimic this sound. 

noun
  • The characteristic cry of a sheep or a goat. 

girn

verb
  • To whinge, moan, complain. 

  • To make elaborate unnatural and distorted faces as a form of amusement or in a girning competition. 

  • To grimace; to snarl. 

noun
  • A vocalization similar to a cat's purring. 

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