coffer

Short definition from Wiktionary

Noun

1. 1
   A strong chest or box used for keeping money or valuables safe.
2. 2
   An ornamental sunken panel in a ceiling or dome.
3. 3
   A cofferdam.
4. 4
   A supply or store of money, often belonging to an organization.
5. 5
   A trench dug in the bottom of a dry moat, and extending across it, to enable the besieged to defend it with raking fire.

Verb

1. 1
   To put money or valuables in a coffer
2. 2
   To decorate something, especially a ceiling, with coffers.

Proper noun

1. 1
   A surname.