asperse vs overrate

asperse

verb
  • To falsely or maliciously charge another; to slander. 

  • To sprinkle or scatter (liquid or dust). 

overrate

verb
  • To esteem too highly; to give greater praise than due. 

noun
  • An excessive estimate or rate. 

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