emissary vs rep

emissary

noun
  • An underground channel by which the water of a lake escapes. 

  • An agent sent on a mission to represent the interests of someone else. 

  • A venous channel in the skull. 

rep

verb
  • To represent; to act as a representative for. 

  • to lift for multiple reps 

noun
  • A fabric made of silk or wool, or of silk and wool, and having a transversely corded or ribbed surface. 

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