arouse vs encourage

arouse

verb
  • To stimulate or induce (feelings). 

  • To sexually stimulate. 

  • To cause an erection of the penis or other physical signs of sexual arousal, such as fluid secretion. 

  • To wake from sleep or stupor; to rouse. 

encourage

verb
  • To mentally support; to motivate, give courage, hope or spirit. 

  • To spur on, strongly recommend. 

  • To foster, give help or patronage 

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