ill-usage vs wickedness

ill-usage

noun
  • bad, cruel or unkind treatment 

wickedness

noun
  • A wicked or sinful thing or act; morally bad or objectionable behaviour. 

  • The state of being wicked; evil disposition; immorality. 

How often have the words ill-usage and wickedness occurred in a corpus of books? (source: Google Ngram Viewer )