angularity vs stringency

angularity

noun
  • A stiff, cranky, crotchety manner or behaviour. 

  • The property or characteristic of possessing angles. 

  • A sharp point or angle. 

stringency

noun
  • A tightness or constriction. 

  • A rigorous imposition of standards. 

  • A scarcity of money or credit. 

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