restoration
/ˌrɛstəˈreɪʃən/
noun
plural -tions
the act or process of returning something to its original condition by repairing it, cleaning it, etc. [noncount]
somewhat formal :the act of bringing back something that existed before - usually + of; [noncount]
[count, noncount] somewhat formal :the act of returning something that was stolen or taken - often + of
the Restoration :the period in 17th-century English history when Charles II was king after a long period of no king or queen on the throne