ascend vs twirl

ascend

verb
  • To become higher in pitch. 

  • To slope in an upward direction. 

  • To move upward, to fly, to soar. 

  • To succeed. 

  • To trace, search or go backwards temporally (e.g., through records, genealogies, routes, etc.). 

  • To lose one's virginity, especially of a man through unpaid and consensual sexual intercourse with a woman. 

  • To go up. 

  • To rise; to become higher, more noble, etc. 

twirl

verb
  • To pitch. 

  • To twist round. 

  • To rotate rapidly. 

  • To perform a 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. 

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