charter vs invalidate

charter

noun
  • A special privilege, immunity, or exemption. 

  • A deed (legal contract). 

  • The temporary hiring or leasing of a vehicle. 

  • A contract for the commercial leasing of a vessel, or space on a vessel. 

  • a provision whose unintended consequence would be to encourage an undesirable activity 

  • A similar document conferring rights and privileges on a person, corporation etc. 

  • A document issued by some authority, creating a public or private institution, and defining its purposes and privileges. 

adj
  • Leased or hired. 

verb
  • To grant or establish a charter. 

  • To lease or hire something by charter. 

  • (of a peace officer) To inform (an arrestee) of their constitutional rights under the Canadian Charter of Rights and Freedoms upon arrest. 

invalidate

verb
  • To make invalid. Especially applied to contract law. 

  • To make or declare (an argument, statement, or theory) unsound or erroneous; disprove. 

  • To render invalid; discredit. 

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