breeding vs refinement

breeding

noun
  • The act of insemination by natural or artificial means. 

  • The act of copulation in animals. 

  • Propagation of offspring through sexual reproduction. 

  • The good manners regarded as characteristic of the aristocracy and conferred by heredity. 

  • Nurture; education; formation of manners. 

  • Descent; pedigree; extraction. 

  • Ejaculation inside the rectum during bareback anal sex. 

adj
  • Of, relating to or used for breeding. 

refinement

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

  • A fine or subtle distinction. 

  • High-class style; cultivation. 

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