palimpsest |ˈpalimpˌsest|
noun
a manuscript or piece of writing material on which the original writing has been effaced to make room for later writing but of which traces remain.
• something reused or altered but still bearing visible traces of its earlier form: Sutton Place is a palimpsest of the taste of successive owners.
My only previous reading of that word was when I was studying Indian history, but this quote rom Nehru really stuck with me: