discernment vs refinement

discernment

noun
  • The act of distinguishing between things. 

  • The condition of understanding. 

  • The ability to distinguish between things. 

  • Aesthetic discrimination; taste, appreciation. 

  • The ability to make wise judgements; sagacity. 

  • Perceptiveness. 

  • Discretion in judging objectively. 

  • The ability to perceive differences that exist. 

  • The ability to distinguish; judgement. 

refinement

noun
  • A fine or subtle distinction. 

  • The act, or the result of refining; the removal of impurities, or a purified material 

  • High-class style; cultivation. 

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