δήπου · dēpou — LSJ
perhaps, it may be, doubtless, I presume
perhaps, it may be, ᾧ δή που ἀδελφεὸν ἔκτανε Il. 24.736: in Trag. and Att. usu. doubtless, I presume, οὐ δήπου τλητόν A. Pr. 1064; τῶν Λαΐου δ. τις ὠνομάζετο S. OT 1042, cf. Ar. Pl. 491, 582, Th. 1.121, etc.; ἴστε γὰρ δή που, μέμνησθε γὰρ δή που, D. 2.25, 19.113, cf. 18.249; σχεδὸν ἴσμεν ἅπαντες δή που Id. 3.9; οὐδεὶς ἀγνοεῖ δή που Id. 21.156.
II I presume, surely it is, so?
as interrog. implying an affirm. answer, τὴν αἰχμάλωτον κάτοισθα δή που; i.e. I presume you know, S. Tr. 418; ἀνόμοιον δή που Pl. Tht. 159b; οὐ δή που; surely it is not so? implying a neg. answer, as Ar. Ra. 526, Pl. Men. 73c.