glissade vs roller skate

glissade

verb
  • To perform a glissade. 

noun
  • A fencing move that may disarm the opponent (Wikipedia). 

  • A gliding step beginning and ending in a demi-plié in second position (Wikipedia). 

  • A sliding, as down a snow slope in the Alps (Wikipedia). 

  • A move in some dances such as the galop (Wikipedia). 

roller skate

verb
  • To skate using roller skates. 

noun
  • A boot having small wheels or casters attached to its sole; used for roller skating. 

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