ⲛⲣⲁⲥϯ

Coptic

Etymology

ⲛ- (n-) +‎ ⲣⲁⲥϯ (rasti, “tomorrow”), from Demotic rsṱ (“morrow”), from Egyptian
(rs, “wake”) +
(ṯw, “you”), all together an imperative: “wake up, you”.

Adverb

ⲛⲣⲁⲥϯ • (nrasti)

(Bohairic) tomorrow

References

Černý, Jaroslav (1976) Coptic Etymological Dictionary, Cambridge: Cambridge University Press, →ISBN, page 139
Crum, Walter E. (1939) A Coptic Dictionary‎, Oxford: Clarendon Press, →ISBN, page 302