bitzer vs greyhound

bitzer

noun
  • A mongrel dog. 

  • A person of mixed race or ethnicity. 

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. 

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