admonish vs chastise

admonish

verb
  • To advise against wrongdoing; to caution; to warn against danger or an offense. 

  • To inform or notify of a fault; to rebuke gently or kindly, but seriously; to tell off. 

  • To instruct or direct. 

chastise

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

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

  • To lightly criticize or correct (someone). 

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