goad vs retard

goad

verb
  • To incite or provoke. 

  • To encourage or stimulate. 

  • To prod with a goad. 

noun
  • That which goads or incites; a stimulus. 

  • A long, pointed stick used to prod animals. 

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 goad and retard occurred in a corpus of books? (source: Google Ngram Viewer )