civility vs roughness

civility

noun
  • An individual act or expression of polite behaviour; a courtesy. 

  • Speech or behaviour that is fit for civil interactions; politeness, courtesy. 

roughness

noun
  • A measure of how rough something is, such as a surface 

  • Abundance, especially of food. 

  • Roughage; coarse fodder. 

  • The property of being rough, coarseness. 

  • Something that is rough; a rough spot. 

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