grazier vs sheepdog

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. 

sheepdog

noun
  • A breed of dog, used for herding sheep. 

  • A breed of dog used for guarding sheep. 

  • A police officer. 

verb
  • To chaperon or shepherd. 

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