ὑπόσχεσ-ις · hyposches-is — LSJ
undertaking, engagement, promise, οὐδέ τοι ἐκτελέουσιν ὑπόσχεσιν ἥν περ ὑπέσταν Il. 2.286; τέλεσόν μοι ὑ. ἥν περ ὑπέστης Od. 10.483; τὴν ὑ. ἐκτελέσαι Hdt. 5.35; κραίνειν A. Supp. 368; ἀποδιδόναι Isoc. 15.75, cf. Pl. Men. 77a; ὑ. ἀπολαβεῖν to receive the fulfilment of a promise, X. Smp. 3.3; ἀπαιτεῖν τὰς ὑ. to demand their fulfilment, Arist. EN 1164a17; ὑ. ψεύσασθαι to fail in its performance, Aeschin. 1.143; μεγάλας ποιεῖσθαι τὰς ὑ. Isoc. 4.14; ἡ ὑ. ἀπέβη was accomplished, Th. 4.39; δύο ὑποσχέσε
promise to pay, ὀκτὼ δραχμῶν PCair.Zen. 736.25 (iii B. C.), cf. POxy. 91.11 (ii A. D.); contract to execute work, farm land, etc., ib. 1117.6 (ii A. D.), PTeb. 10.7 (ii B. C.).
profession of principles, Luc. Pisc. 31.