induce vs retard

induce

verb
  • To lead by persuasion or influence; incite or prevail upon. 

  • To infer by induction. 

  • To cause or produce (electric current or a magnetic state) by a physical process of induction. 

  • To cause, bring about, lead to. 

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