cupboard vs root cellar

cupboard

verb
  • To collect, as into a cupboard; to hoard. 

noun
  • A cabinet, closet, or other piece of furniture with shelves intended for storing cookware, dishware, or food; similar cabinets or closets used for storing other items. 

root cellar

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

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

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