inspire vs retard

inspire

verb
  • To infuse into the mind; to communicate to the spirit; to convey, as by a divine or supernatural influence; to disclose preternaturally; to produce in, as by inspiration. 

  • To draw in by the operation of breathing; to inhale. 

  • To infuse by breathing, or as if by breathing. 

  • To spread rumour indirectly. 

  • To infuse into; to affect, as with a superior or supernatural influence; to fill with what animates, enlivens or exalts; to communicate inspiration 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 inspire and retard occurred in a corpus of books? (source: Google Ngram Viewer )