reservatory

noun
re·​serv·​ato·​ry | \ rə̇ˈzərvəˌtōrē\
plural -es

Definition of reservatory

archaic
: a place (as a cupboard or reservoir) in which things are kept

History and Etymology for reservatory

Medieval Latin reservatorium, from Latin reservatus (past participle of reservare to reserve) + -orium -ory

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