WordNet (r) 3.0 (2006):

lay away
    v 1: save up as for future use [syn: hoard, stash, cache,
         lay away, hive up, squirrel away]

Moby Thesaurus II by Grady Ward, 1.0:

48 Moby Thesaurus words for "lay away":
   bank, bundle away, cache, coffer, delay, deposit, entomb, file,
   hutch, inhume, inter, lay aside, lay by, lay down, lay in,
   lay in store, lay up, lodge, pack away, pigeonhole, plant,
   postpone, push aside, put aside, put away, put by,
   put in mothballs, reposit, reservoir, salt away, salt down,
   sepulcher, sepulture, set aside, set by, shelve, sideline, spare,
   stash, store, store away, stow, stow away, stow down, table,
   table the motion, tomb, warehouse