hound vs retard

hound

verb
  • To urge on against; to set (dogs) upon in hunting. 

  • To persistently harass. 

noun
  • A dog, particularly a breed with a good sense of smell developed for hunting other animals. 

  • Someone who seeks something. 

  • A houndfish. 

  • Any canine animal. 

  • A despicable person. 

  • A side bar used to strengthen portions of the running gear of a vehicle. 

  • Projections at the masthead or foremast, serving as a support for the trestletrees and top to rest on; foretop 

  • A male who constantly seeks the company of desirable women. 

retard

verb
  • To put off; to postpone. 

  • To decelerate; to slow down. 

  • To keep delaying; to continue to hinder; to prevent from progressing. 

noun
  • Retardation; delay. 

  • A slowing down of the tempo; a ritardando. 

  • A person or being who is extremely stupid or slow to learn. 

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