correspondence vs dak

correspondence

noun
  • Postal or other written communications. 

  • A relation. 

  • Reciprocal exchange of civilities, especially conversation between persons by means of letters. 

  • An agreement of situations or objects with an expected outcome. 

  • Newspaper or news stories. 

  • A similarity between physical and spiritual things (e.g. light to wisdom, or warmth to love) 

dak

noun
  • A post system by means of transport relays of horses stationed at intervals along a route or network, carrying mail and passengers. 

  • A dak bungalow. 

verb
  • To suddenly pull down someone's pants as a prank; to pants. 

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