inspire vs sadden

inspire

verb
  • To infuse into; to affect, as with a superior or supernatural influence; to fill with what animates, enlivens or exalts; to communicate inspiration to. 

  • 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. 

sadden

verb
  • To render heavy or cohesive. 

  • To darken a color during dyeing. 

  • To make sad or unhappy. 

  • To become sad or unhappy. 

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