ἐχθές
From LSJ
English (LSJ)
Adv.
A = χθές, yesterday, Ar.Nu.175, Th.616, etc.; ἀπ' ἐ. AP 11.35 (Phld.); μέσφα τό γ' ἐ. Theoc.2.144; οὐ γάρ τι νῦν γε κἀ. today or yesterday, S.Ant.456; οὐκ ἐ. οὐδὲ πρῴην Antipho Fr.58; ἐ. καὶ τρίτης [ἡμέρας] LXX Ru.2.11, cf. M.Ant.10.7. (ἐχθές is commoner than χθές in Com. and LXX, is the only form used in NT, and freq. in papyri of all periods, PSI4.442.21 (iii B.C.), etc.; cf. χθές.)