continuant vs never-dying

continuant

adj
  • Continuing; prolonged; sustained. 

noun
  • An endurant. 

  • A determinant formed from a tridiagonal matrix. 

  • A linguistic sound other than a stop. 

never-dying

adj
  • everlasting, unceasing 

How often have the words continuant and never-dying occurred in a corpus of books? (source: Google Ngram Viewer )