ἀντεπίσταλμα
From LSJ
λέγεις, ἃ δὲ λέγεις ἕνεκα τοῦ λαβεῖν λέγεις → you speak, but you say what you say for the sake of gain (Menander, fr. 776)
English (LSJ)
ατος, τό,
A return furnished in reply, CPR20i20 (iii A. D.).
Spanish (DGE)
-ματος, τό
respuesta, contestación a una carta ἀρκεσθή[σο] μαι γὰρ τῷδ[ε] τῷ ἀντεπι[σ] τάλματι ἐ[ν] μεγίστῳ δικαιώματι CPR 1.20.1.20 (III d.C.).