cobbler's vs cordwainer

cobbler's

noun
  • shoe repair shop 

cordwainer

noun
  • A shoemaker. 

  • A member of the Worshipful Company of Cordwainers, a livery company. 

  • A worker in cordwain. 

  • A leather from Córdoba. 

How often have the words cobbler's and cordwainer occurred in a corpus of books? (source: Google Ngram Viewer )