permission vs veto

permission

noun
  • The act of permitting. 

  • authorisation; consent (especially formal consent from someone in authority) 

  • Flags or access control lists pertaining to a file that dictate who can access it, and how. 

verb
  • To grant or obtain authorization for. 

veto

noun
  • An invocation of that right. 

  • A technique or mechanism for discarding what would otherwise constitute a false positive in a scientific experiment 

  • A political right to disapprove of (and thereby stop) the process of a decision, a law etc. 

  • An authoritative prohibition or negative; a forbidding; an interdiction. 

verb
  • To use a veto against. 

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