moderation vs partiality

moderation

noun
  • The state or quality of being moderate; avoidance of extremes 

  • An instance of moderating: bringing something away from extremes, especially in a beneficial way 

  • The process of moderating a discussion 

partiality

noun
  • The quality of being partial or incomplete. 

  • Preference, bias in favor of, tendency. 

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