fiat vs veto

fiat

noun
  • Authorization, permission or (official) sanction. 

  • An arbitrary or authoritative command or order to do something; an effectual decree. 

  • A warrant of a judge for certain processes. 

  • An authority for certain proceedings given by the Lord Chancellor's signature. 

  • (Pertaining to) fiat currency. 

verb
  • To make (something) happen. 

veto

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

  • 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. 

verb
  • To use a veto against. 

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