angularity vs severity

angularity

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

  • The property or characteristic of possessing angles. 

  • A sharp point or angle. 

severity

noun
  • The degree of something undesirable; badness or seriousness. 

  • The state of being severe. 

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