censure vs palliation

censure

verb
  • To criticize harshly. 

  • To formally rebuke. 

noun
  • An official reprimand. 

  • Judicial or ecclesiastical sentence or reprimand; condemnatory judgment. 

  • The act of blaming, criticizing, or condemning as wrong; reprehension. 

palliation

noun
  • Extenuation; mitigation. 

  • The alleviation of a disease's symptoms without a cure; temporary relief. 

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