angularity vs iron hand

angularity

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

  • The property or characteristic of possessing angles. 

  • A sharp point or angle. 

iron hand

noun
  • Firmness, inflexibility, sternness. 

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