impugn vs miscall

impugn

verb
  • To verbally assault, especially to argue against an opinion, motive, or action; to question the truth or validity of. 

miscall

verb
  • To call (someone) bad names; to insult, abuse. 

  • To make a wrong call; to announce (one's hand of cards) incorrectly. 

  • To call (something) by the wrong name. 

noun
  • An incorrect call. 

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