curator
noun
[ kjʊ(ə)ˈreɪtə ]
• a keeper or custodian of a museum or other collection.
• "the curator of drawings at the National Gallery"
Origin:
late Middle English (denoting an ecclesiastical pastor, also (still a Scots legal term) the guardian of a minor): from Old French curateur or, in later use, directly from Latin curator, from curare (see cure). The current sense dates from the mid 17th century.