falsetto vs grizzle

falsetto

verb
  • To sing or utter in 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. 

grizzle

verb
  • To whinge or whine. 

  • To make or become grey, as with age. 

  • to cry continuously but not very loudly - especially of a young child. 

  • To fuss or cry 

noun
  • A dark grey colour. 

  • A grey wig. 

  • Grey hair. 

adj
  • Of a grey colour. 

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