Salt Away Meaning

(transitive, idiomatic) To save or preserve (especially money) for future use.

Example: 1844, James Fenimore Cooper, Miles Wallingford, ch. 2:
  "You have more than two thousand salted away, I know, Moses, between prize-money, wages, adventures, and other matters."
1908, O. Henry, "Tempered Wind" in The Gentle Grafter:
  Some of the stockholders . . . wanted to leave the money invested. "Salt away that chicken feed in your duds, and skip along," says Buck. "What business have you got investing in bonds?"