hope chest

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A chest used by a young woman for clothing and household goods, such as linens and silver, in anticipation of marriage.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A box containing items, especially clothing, table linens, towels, bed linens, and quilts, typically stored by unmarried young women in anticipation of future marriages or married lives.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun chest for storage of clothing (trousseau) and household goods in anticipation of marriage