Definition of Great Wardrobe in US English:

Great Wardrobe

noun

  • A department of the royal household responsible for supplying household goods and keeping accounts of the king’s privy purse; (also) the goods administered by this department considered collectively; a building or location used by this department for storage and administration. Compare "wardrobe"Master of the Great Wardrobe. historical after 18th cent.

Origin

Late Middle English. After post-classical Latin magna garderoba and Anglo-Norman grant warderobe.