interlocutor vs merchant

interlocutor

noun
  • A person who takes part in dialogue or conversation. 

  • A man in the middle of the line in a minstrel show who questions the end men and acts as leader. 

  • A decree of a court. 

  • An interlocutory judgement or sentence. 

merchant

noun
  • Someone who is noted for a stated type of activity or behaviour. 

  • A trading vessel; a merchantman. 

  • A person who traffics in commodities for profit. 

  • The owner or operator of a retail business. 

verb
  • As a resident of a region, to buy goods from a non-resident and sell them to another non-resident. 

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