monger vs swap out

monger

verb
  • To sell or peddle something 

  • To promote something undesirable. 

noun
  • A dealer in a specific commodity. 

  • A small sea vessel. 

  • A person promoting something undesirable. 

swap out

verb
  • To exchange (something or someone) for an unused (or less-used) equivalent. 

  • To exchange (something) for (something else). (usually followed by with or for) 

  • To transfer (memory contents) into a swap file. 

noun
  • Anything that is swapped out for another; an exchange. 

  • A pre-prepared food item used in place of an unfinished food item in order to cut down the overall preparation time during filming. 

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