suitableness vs well-foundedness

suitableness

noun
  • The state or quality of being suitable, adapted or accommodated; suitability 

  • The result of being suitable. 

well-foundedness

noun
  • The state or quality of being well-founded. 

How often have the words suitableness and well-foundedness occurred in a corpus of books? (source: Google Ngram Viewer )