Of the two words, only cellar has this backdrop:
cellar: c.1225, from O.Fr. celer, from L. cellarium "pantry, storeroom," lit. "group of cells," from L. cella (cell)
cell: c.1131, "small room," from L. cella "small room, hut," related to L. celare "to hide, conceal," from PIE base *kel- "conceal" (cf. Skt. cala "hut, house, hall;" Gk. kalia "hut, nest," kalyptein "to cover," koleon "sheath," kelyphos "shell, husk;" L. cella "store room," clam "secret;" O.Ir. cuile "cellar," celim "hide," M.Ir. cul "defense, shelter;" Goth. hulistr "covering," O.E. heolstor "lurking-hole, cave, covering," Goth. huljan "cover over," hulundi "hole," hilms "helmet," halja "hell," O.E. hol "cave," holu "husk, pod"). Earliest sense is for monastic rooms, then prison rooms (1722). Used in biology 17c., but not in modern sense until 1845. Meaning "small group of people working within a larger organization" is from 1925. Cellphone is from 1984.
Still, the two words are sometimes used interchangeably.