Codex and Palimpsest

Codex noun - An unbound manuscript of some ancient classic (as distinguished from a scroll).

Palimpsest and codex are semantically related. In some cases you can use "Palimpsest" instead a noun "Codex".

Palimpsest noun - A manuscript (usually written on papyrus or parchment) on which more than one text has been written with the earlier writing incompletely erased and still visible.

Codex and palimpsest are semantically related. Sometimes you can use "Codex" instead a noun "Palimpsest".