snorkel vs tootle

snorkel

verb
  • To use a snorkel. 

noun
  • A snorkel parka. 

  • A retractable tube fitted in diesel-engine submarines to allow sufficient ventilation that the engines may be used at periscope depth. 

  • A hollow tube, held in the mouth, or mounted on and opening into a diving mask, used by swimmers for breathing underwater. 

tootle

verb
  • To make a soft toot sound. 

  • To transport (someone somewhere). 

  • To go (somewhere); to amble aimlessly. 

  • To play (a musical instrument) making such a sound. 

noun
  • A soft toot sound. 

  • A trip or excursion. 

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