paperhanging vs papering

paperhanging

noun
  • Wallpaper. 

  • The illegal activities of a paperhanger; counterfeiting fraud. 

  • The trade of hanging wallpaper on walls. 

papering

noun
  • Wallpaper. 

  • A technique of boycotting a judge by the Public Defender's Office by filing a request for a different judge in every case assigned to this judge. 

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