continuant vs foot-tapping

continuant

noun
  • A linguistic sound other than a stop. 

  • An endurant. 

  • A determinant formed from a tridiagonal matrix. 

adj
  • Continuing; prolonged; sustained. 

foot-tapping

noun
  • A rhythmic tapping of the foot, especially in time to music 

adj
  • Having an insistent rhythm; catchy 

How often have the words continuant and foot-tapping occurred in a corpus of books? (source: Google Ngram Viewer )