catnap vs saw wood

catnap

verb
  • To take a catnap (short sleep or nap). 

  • To kidnap a cat. 

noun
  • A brief, light sleep, usually during the daytime. 

saw wood

verb
  • To snore loudly. 

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