/ ˈtreʒəri; NAmE / noun ( pl. -ies )
1.
the Treasury [ sing.+ sing./pl. v . ] (in Britain, the US and some other countries) the government department that controls public money
2.
[ C ] a place in a castle, etc. where valuable things are stored
••
WORD ORIGIN
Middle English : from Old French tresorie , based on Greek thēsauros storehouse, treasure.