pledge vs warranty

pledge

noun
  • An asset or person temporarily handed over to guarantee the fulfilment of something promised, under threat of permanent loss of the thing handed over; surety, security, hostage. 

  • A solemn promise to do something. 

  • The personal property so pledged, to be kept until the debt is paid. 

  • A bailment of personal property to secure payment of a debt without transfer of title. 

  • A person who has taken a pledge of allegiance to a college fraternity, but is not yet formally approved. 

  • A drinking toast. 

  • A promise to abstain from drinking alcohol. 

verb
  • To deposit something as a security; to pawn. 

  • To make a solemn promise (to do something). 

  • To give assurance of friendship by the act of drinking; to drink to one's health. 

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 pledge and warranty occurred in a corpus of books? (source: Google Ngram Viewer )