oath vs warranty

oath

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

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

  • A curse, a curse word. 

  • 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. 

warranty

noun
  • A guarantee that a certain outcome or obligation will be fulfilled; security. 

  • A written guarantee, usually over a fixed period, provided to someone who buys a product or item, which states that repairs will be provided free of charge in case of damage or a fault. 

  • A stipulation of an insurance policy made by an insuree, guaranteeing that the facts of the policy are true and the insurance risk is as stated, which if not fulfilled renders the policy void. 

  • A legal agreement, either written or oral (an expressed warranty) or implied through the actions of the buyer and seller (an implied warranty), which states that the goods or property in question will be in exactly the same state as promised, such as in a sale of an item or piece of real estate. 

  • Justification or mandate to do something, especially in terms of one’s personal conduct. 

verb
  • To warrant; to guarantee. 

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