aid vs patronage

aid

verb
  • To provide support to; to further the progress of; to help; to assist. 

  • To climb with the use of aids such as pitons. 

noun
  • Help; assistance; succor, relief. 

  • An historical subsidy granted to the crown by Parliament for an extraordinary purpose, such as a war effort. 

  • A helper; an assistant. 

  • An exchequer loan. 

  • Something which helps; a material source of help. 

  • A pecuniary tribute paid by a vassal to his feudal lord on special occasions. 

  • The rider's use of hands, legs, voice, etc. to control the horse. 

patronage

verb
  • To support by being a patron of. 

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

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 aid and patronage occurred in a corpus of books? (source: Google Ngram Viewer )