ἐπίσταλμα
From LSJ
ἐν τυφλῶν πόλεϊ γλαμυρός βασιλεύει → in the land of the blind, the one-eyed man is king
English (LSJ)
ατος, τό, ἐπιστέλλω)
A commission, Thphr.Char.5.8. II. official communication or order, PFay.26.4 (ii A.D.), Wilcken Chr.42.3, 8 (iv A.D.), Cod.Just.7.37.3.1c: pl., of Imperial letters, Just. Nov.167.1.