guarantee vs indenture

guarantee

noun
  • More specifically, a written declaration that a certain product will be fit for a purpose and work correctly; a warranty 

  • The person to whom a guarantee is made. 

  • A person who gives such a guarantee; a guarantor. 

  • A legal assurance of something, e.g. a security for the fulfillment of an obligation. 

  • Anything that assures a certain outcome. 

verb
  • To make something certain. 

  • To give an assurance that something will be done right. 

  • To assume or take responsibility for a debt or other obligation. 

indenture

noun
  • A document, written as duplicates separated by indentations, specifying such a contract. 

  • A contract which binds a person to work for another, under specified conditions, for a specified time (often as an apprentice). 

  • An indentation; a recess. 

verb
  • To indent; to make hollows, notches, or wrinkles in; to furrow. 

  • To bind a person under such a contract. 

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