continuant vs equable

continuant

adj
  • Continuing; prolonged; sustained. 

noun
  • An endurant. 

  • A determinant formed from a tridiagonal matrix. 

  • A linguistic sound other than a stop. 

equable

adj
  • Unvarying, calm and steady; constant and uniform. 

  • Not easily disturbed; tranquil. 

  • Free from extremes of heat or cold. 

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