διᾰμαρτ-άνω · diamart-anō — LSJ
strengthd. for ἁμαρτάνω, miss entirely, go quite astray from, τῆς ὁδοῦ Th. 1.106; τοῦ πράγματος D. 21.192, 51.2; τοῦ ἑταίρου Pl. Phdr. 257d; τῆς ὀρθοτάτης πολιτείας Arist. Pol. 1293b25.
fail utterly of, fail of obtaining, τινός Th. 2.78; τῶν ἐλπίδων Isoc. 4.93; τοῦ ἀγῶνος Is. 6.52; τῆς εἰρήνης D. 18.30; δυοῖν χρησίμοιν οὐ δ. not to miss both of two good things, Id. 19.151.
abs., fail utterly, opp. τυγχάνω, Pl. Tht. 178a; to be quite wrong, Macho 2.6; γνώμῃ in judgement, D. 24.48,110; δ. τοῖς ὅλοις Arist. EN 1098b28; ἐν τῇ ἀρχῇ ib. 1163a3; περί τι Id. Oec. 1345b10:—Pass., τὰ πολλὰ . . διημαρτημένα utter failures, Pl. Lg. 639e; διημαρτημένας δόξας Diogenian.Epicur. 2.32; διημαρτημένος faulty, of style, Phld. Rh. 1.8S., Longin. 33.1, Demetr. Eloc. 114 (also in act. sense, πολλαχῇ διημαρτημένου τοῦ Πλάτωνος Longin. 32.8, cf. Plu. Aud. 2.44e). Adv. διημαρτημένως Poll.