nullification vs testimony

nullification

noun
  • The nullification crisis in U.S. history, confrontation between the state of South Carolina and the federal government in 1832–33 over the former's attempt to declare null and void within the state the federal Tariffs of 1828 and 1832. 

  • Surgical removal of genitals (and sometimes nipples) as a form of body modification; a person who has undergone this surgery is a nullo. 

  • The act of nullifying; a rendering void and of no effect, or no legal effect. 

testimony

noun
  • Statements made by a witness in court. 

  • In a church service (or religious service), a personal account, such as one's conversion, testimony of faith, or life testimony. 

  • An account of first-hand experience. 

  • Witness; evidence; proof of some fact. 

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