cast aspersions vs castigate

cast aspersions

verb
  • To make damaging or spiteful remarks. 

castigate

verb
  • To execrate or condemn something in a harsh manner, especially by public criticism. 

  • To revise or make corrections to a publication. 

  • To punish or reprimand someone severely. 

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