Wiktionary
vb. (context idiomatic intransitive English) To keep a supply of something, in a place or container.
Usage examples of "store away".
After watching the mice and squirrels store away their own harvests, the Littles began to shake the grain from the blades of grass and gather it in heaps with their wings, storing it in hidey-holes and hollow logs.
They do not sow or reap or store away in barns, and yet your heavenly Father feeds them.
Just a good thing they had a fine man like the Judge to hold this trial, had it down there at Wink County Court with some jury from Tatamount and Stinking Creek where everybody knowed how Billye Fickert shacked up with that fertilizer salesman before she married Hoddy Coops after Earl took off for Mississippi when they run him out for throwing lye down Roddy's well a jury like that would have give the whole store away, can you tell me how Father could have put up with that for thirty years?