pedal vs twirl

pedal

noun
  • A stirrup. 

  • The ranks of pipes played from the pedal-board of an organ. 

  • an orthopedic structure or a footlike part. 

  • An effects unit, especially one designed to be activated by being stepped on. 

  • A lever operated by one's foot that is used to control or power a machine or mechanism, such as a bicycle or piano 

verb
  • To operate a pedal attached to a wheel in a continuous circular motion. 

  • To operate a bicycle. 

adj
  • Of or relating to the foot. 

twirl

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. 

verb
  • To twist round. 

  • To pitch. 

  • To rotate rapidly. 

  • To perform a twirl. 

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