Lewis & Short

cellārĭum, ii, n. [cellarius] (post-class. access. form to cella),

  1. I. a receptacle for food, a pantry, Dig. 32, 41, 1; Cael. Aur. Acut. 1, 11, 93; 3, 21, 204.
  2. II. Meton., food, provisions, Cod. Th. 1, 10, 3.