curvet vs snorkel

curvet

verb
  • To fly or swim with darting movements. 

  • (of a person) To prance; to caper, frolic. 

  • Of a horse or, by extension, another animal: to leap about, to frolic. 

  • (of an object) To jump, skip, shake. 

  • To cause to leap about, dart or jump. 

noun
  • A prank; a frolic. 

  • A particular leap in which a horse raises both forelegs at once, equally advanced, and, as the forelegs are falling, raises the hind legs, so that all the legs are in the air at once. 

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. 

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