groceries vs root cellar

groceries

noun
  • The commodities sold by a grocer or in a grocery store. 

root cellar

noun
  • A structure built underground or partially underground and used to store vegetables, fruits, and nuts or other foods. 

verb
  • To cellar (food) in a root cellar. 

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