According to my online dictionary, Palimpsest is defined as under:
a parchment or the like from which writing has been partially or completely erased to make room for another text.
[Origin: 1655–65; < L palimpséstus < Gk palímpséstos rubbed again (pálin again + pséstós scraped, rubbed, verbid of psân to rub smooth)]
That is the name of the new novel by my friend K. Sridhar of the Department of Theoretical Physics of the Tata Institute of Fundamental Research, Mumbai. Its first chapter has just been published by New Quest and the link is
here. Here is wishing him luck with finishing the book and all future endeavours.