overcoat vs tails

overcoat

noun
  • A heavy garment worn over other clothes, for protection from cold or weather. 

verb
  • To apply an exterior coating to. 

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 overcoat and tails occurred in a corpus of books? (source: Google Ngram Viewer )