palimpsest

/ˈpaləm(p)ˌsest/
noun

1. 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
2. something reused or altered but still bearing visible traces of its earlier form

They swept through me until I forgot to fight, forgot that I had ever been anything but a palimpsest of memories overwritten by visions.

– Rosamund Hodge, Cruel Beauty