conversation piece vs habit

conversation piece

noun
  • An unusual item, such as a painting, or a tabletop knick-knack which encourages comment from visitors, and so helps to break the ice. 

  • A painting of a group of people engaged in conversation or some other activity, popular in 18th century. 

habit

verb
  • To clothe. 

noun
  • A long piece of clothing worn by monks and nuns. 

  • An action performed on a regular basis. 

  • An action performed repeatedly and automatically, usually without awareness. 

  • A piece of clothing worn for a specific activity; a uniform. 

  • An addiction. 

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