means A place where goods are kept and sold, or the act of keeping something safe for later use.

from From Old French 'estorer,' to build, furnish, or stock, which traces back to Latin 'instaurare,' to renew or restore — the same root behind 'restore' and 'restaurant.' The word first meant the supply you laid up against future need; only later did it migrate to the building where such supplies are sold. So at heart, a store is a stockpile that grew walls and a cash register.