dynasty vs tenancy

dynasty

noun
  • The polity or historical era under the rule of a certain dynasty. 

  • A series of rulers or dynasts from one family. 

  • A team or organization which has an extended period of success or dominant performance. 

tenancy

noun
  • Synonym of lease (an interest in land, its related contract or the document containing that contract); more commonly used when a lease is short-term or has a periodic rent that is not merely nominal. 

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