consensus vs consent

consensus

verb
  • To seek consensus; to hold discussions with the aim of reaching mutual agreement. 

noun
  • A process of decision-making that seeks widespread agreement among group members. 

  • Average projected value. 

  • General agreement among the members of a given group or community, each of which exercises some discretion in decision-making and follow-up action. 

  • An agreement on some data value that is needed during computation. 

consent

verb
  • To agree in opinion or sentiment; to be of the same mind; to accord; to concur. 

  • To express willingness, to give permission. 

  • To cause to sign a consent form. 

noun
  • Voluntary agreement or permission. 

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