Should we bring back overmorrow and ereyesterday?

In Welsh, we have words for the day after tomorrow and the day before yesterday. You'll be pleased to know English has words too, overmorrow and ereyesterday.

The problem is they've fallen out of use, anf they don't teach it in school anymore, which is a shame because overmorrow sounds nice, doesn't it?

I'm going to start using them, are you?
Should we bring back overmorrow and ereyesterday?
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