ἔφεξις
From LSJ
ἡ γὰρ σιωπὴ μαρτυρεῖ τὸ μὴ θέλειν → silence is evidence of unwillingness (Menander)
English (LSJ)
εως, ἡ, (ἐπέχω)
A = ἐπισχεσία, excuse, pretext, τοῦ δ' ἔφεξιν; = τίνος χάριν; Ar.V.338 (troch.), cf. E.Fr.599 (tragic use, acc. to Sch. Ar. l.c.). II checking, stopping, IG12(9).207.10 (Eretria).
German (Pape)
[Seite 1114] ἡ, 1) das Anhalten. – 2) = ἐπισχεσία, Ar. Vesp. 337, nach dem Schol. = πρόφασις bei den Tragg.