continuant vs recurrent

continuant

adj
  • Continuing; prolonged; sustained. 

noun
  • An endurant. 

  • A determinant formed from a tridiagonal matrix. 

  • A linguistic sound other than a stop. 

recurrent

adj
  • Recurring; happening time after time. 

  • Turned back toward the base. 

  • Running back toward its origin. 

  • Non-transient. 

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