broker vs patronage

broker

verb
  • To act as a broker; to mediate in a sale or transaction. 

  • To act as a broker in; to arrange or negotiate. 

noun
  • An agent involved in the exchange of messages or transactions. 

  • A mediator between a buyer and seller. 

  • A stockbroker. 

  • A mediator in general, one who liaises between two or more parties to attempt to achieve an outcome of some kind. 

patronage

verb
  • To be a regular customer or client of; to patronize 

  • To support by being a patron of. 

noun
  • The act or state of being a customer of some business. 

  • Customers collectively; clientele; business. 

  • A communication that indicates lack of respect by patronizing the recipient; condescension; disdain. 

  • The right of nomination to political office. 

  • Granting favours or giving contracts or making appointments to office in return for political support. 

  • The right of presentation to church or ecclesiastical benefice; advowson. 

  • Guardianship, as of a saint; tutelary care. 

  • The act of providing approval and support; backing; championship. 

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