higgler vs monger

higgler

noun
  • A seller of any kind of small produce or wares; a huckster. 

  • A person who haggles or negotiates for lower prices. 

monger

noun
  • A dealer in a specific commodity. 

  • A small sea vessel. 

  • A person promoting something undesirable. 

verb
  • To promote something undesirable. 

  • To sell or peddle something 

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