may:
they should have a word called Presterday which means the day before yesterday .
Vorgestern
Anteayer
завчера
förrgår
Predvčerajšnjem
پرسوں
przedwczoraj
προχθές
మొన్న
předevčírem
позавчера
पारसों
(also means the day after tomorrow. No, that’s not confusing at all, what are you talking about)and did we all forget about ereyesterday, a real Middle English word
avant-hier
avant’ieri/l’altro ieri
前天
Hôm kia
おととい