Origin: 1400–50; salt1+ cellar, for earlier saler saltcellar, late ME < OF saliere < L salāria, n. use of fem. of salārius (adj.) pertaining to salt, equiv. to salsalt1+ -ārius-ary
1434, from salt + Anglo-Norm. *saler "saltcellar" (14c.), from O.Fr. salier "salt box," from L. salarium, from a dim. of L. sal "salt." As the connection between *saler and "salt" was lost, salt- was tacked on to the beginning; second element altered on model of cellar.