discredit vs guarantee

discredit

noun
  • A person or thing that causes harm to a reputation, as of a person, family, or institution. 

  • A degree of dishonour or disesteem; ill repute; reproach. 

  • The state of being discredited or disbelieved. 

  • Discrediting or disbelieving. 

verb
  • To harm the good reputation of a person; to cause an idea or piece of evidence to seem false or unreliable. 

guarantee

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

  • The person to whom a guarantee is made. 

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

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

  • 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. 

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