scutter vs whirr

scutter

verb
  • To run with a light pattering noise; to skitter. 

  • To void thin excrement. 

noun
  • Thin excrement. 

  • A hasty run. 

whirr

verb
  • To move or vibrate (something) with a buzzing sound. 

  • To make a sibilant buzzing or droning sound. 

  • To cause (something) to make such a sound. 

noun
  • A sibilant buzz or vibration; the sound of something in rapid motion. 

  • A bustle of noise and excitement. 

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