This is an irregular feature - both in frequency and oddness - dedicated to a word I came across that I have never previously used.
palimpsest n. Writing material, such as parchment, which has been written on more than once; the earlier writing has been incompletely erased and is often still legible.
The word "palimpsest" is also used in a metaphorical fashion to descibe the act of covering, cloaking, or the creation of a facade. Here is an example of the term's usage from Marie Huber, of McKinsey and Company: ""Rome is a palimpsest; everywhere modern chic overlays a bygone barbarism."
The word is derived from the Latin palimpsestus, and from the Greek palimpsestos "scraped again" (palin "again" + psen "to rub or scrape").