Answer: palimpsests

AnswerCrossword Clue
palimpsestsPALIMPSEST, writing material (as a parchment or tablet) used one or more times
palimpsestsA 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
palimpsestsSomething reused or altered but still bearing visible traces of its earlier form