haggler vs higgler

haggler

noun
  • A person who buys vegetables and other produce from farms and then sells them on in a different location; a person who transports farm goods. 

  • A person who haggles. 

higgler

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

  • A person who haggles or negotiates for lower prices. 

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