greyhound vs hound dog

greyhound

noun
  • A lean breed of dog used in hunting and racing. 

  • A highball cocktail of vodka and grapefruit juice. 

verb
  • To leap rapidly across the surface of the water. 

hound dog

noun
  • Any hound, especially the bloodhound. 

  • A promiscuous man. 

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