partiality vs unfairness

partiality

noun
  • The quality of being partial or incomplete. 

  • Preference, bias in favor of, tendency. 

unfairness

noun
  • An unjust act or situation. 

  • The state of being unfair; lack of justice. 

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