grocery vs market day

grocery

noun
  • A shop or store that sells groceries; a grocery store. 

  • retail foodstuffs and other household supplies. 

verb
  • To go grocery shopping. 

  • To furnish with groceries. 

market day

noun
  • The day of the week in which a market is held in some particular location. 

  • Used other than figuratively or idiomatically: see market, day. 

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