chastise vs encourage

chastise

verb
  • To lightly criticize or correct (someone). 

  • To punish (someone), especially by corporal punishment. 

  • To castigate; to severely scold or censure (someone). 

encourage

verb
  • To spur on, strongly recommend. 

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

  • To foster, give help or patronage 

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