patency vs simplicity

patency

noun
  • Obviousness; clarity. 

  • The condition or state of being patent. 

  • The degree of openness (of a tube, such as a blood vessel or catheter); the relative absence of blockage or obstruction. Measured in percent. 

simplicity

noun
  • Lack of subtlety or abstruseness; clarity 

  • Lack of artificial ornament, pretentious style, or luxury; plainness 

  • Lack of complication; efficiency. 

  • The quality or state of being not complex, or of consisting of few parts 

  • The quality or state of being unmixed or uncompounded 

  • Lack of sharpness of mind; lack of ability to think using complex ideas; stupidity 

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