greatcoat vs tails

greatcoat

noun
  • A heavy overcoat. 

tails

noun
  • The side of a coin that doesn't bear the picture of the head of state or similar. 

  • Tailings; waste. 

  • Tailings, feints. 

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