oath vs veto

oath

noun
  • A curse, a curse word. 

  • A light, irreverent or insulting appeal to a deity or other entity. 

  • A solemn pledge or promise that invokes a deity, a ruler, or another entity (not necessarily present) to attest the truth of a statement or sincerity of one's desire to fulfill a contract or promise. 

  • A statement or promise which is strengthened (affirmed) by such a pledge. 

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 oath and veto occurred in a corpus of books? (source: Google Ngram Viewer )