overcoat vs pakamac

overcoat

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

verb
  • To apply an exterior coating to. 

pakamac

noun
  • A lightweight mackintosh that can be folded up into a small pack when not in use. 

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