shudder vs twirl

shudder

verb
  • To vibrate jerkily. 

  • To shake nervously, often from fear or horror. 

noun
  • A moment of almost pleasurable fear; a frisson. 

  • A shivering tremor, often from fear or horror. 

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 shudder and twirl occurred in a corpus of books? (source: Google Ngram Viewer )