roughness vs sophistication

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. 

sophistication

noun
  • Ability to deal with complexity. 

  • Enlightenment or education. 

  • Cultivated intellectual worldliness; savoir-faire. 

  • Deceptive logic; sophistry. 

  • Falsification or contamination. 

  • Complexity. 

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