censure vs countersignature

censure

noun
  • An official reprimand. 

  • Judicial or ecclesiastical sentence or reprimand; condemnatory judgment. 

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

verb
  • To criticize harshly. 

  • To formally rebuke. 

countersignature

noun
  • A signature made to confirm or endorse another. 

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