farmer vs grazier

farmer

noun
  • A person who works the land and/or who keeps livestock, especially on a farm. 

  • The lord of the field, or one who farms the lot and cope of the crown. 

  • One who takes taxes, customs, excise, or other duties, to collect for a certain rate per cent. 

  • regular person; someone who did not receive a prestigious scholarship 

grazier

noun
  • One who grazes cattle and/or sheep on a rural property. 

  • The owner of a large property on which sheep or cattle graze. 

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