skirr vs twirl

skirr

verb
  • To make a whirring sound. 

  • to pass over quickly, skim 

  • To leave hastily; to flee, especially with a whirring sound 

  • To search about in, scour 

noun
  • A tern. 

twirl

verb
  • To perform a twirl. 

  • To twist round. 

  • To pitch. 

  • To rotate rapidly. 

noun
  • A little twist of some substance; a swirl. 

  • A movement where a person spins round elegantly; a pirouette. 

  • Any rotating movement; a spin. 

  • A prison guard. 

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