napping vs stertor

napping

noun
  • The act of taking a nap or short sleep. 

  • The act or process of raising a nap, as on cloth. 

stertor

noun
  • The act of snoring, especially heavy snoring. 

  • A snoring sound, as for example even during wakefulness in infants with breathing difficulties. 

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