falsetto vs girn

falsetto

noun
  • A person who sings in falsetto. 

  • The "false" (singing) voice in any human, usually airy and lacking a purity of vowels; created by utilizing the next highest vocal folds above those used for speech and normal range singing. It is commonly confused with the head voice register. 

verb
  • To sing or utter in falsetto. 

girn

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

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

  • To whinge, moan, complain. 

  • To grimace; to snarl. 

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