A). δύνασαι Il. 1.393 , Od. 4.374 , S. Aj. 1164 (anap.), Ar. Nu. 811 (lyr.), Pl. 574 , X. An. 7.7.8 , etc.; δύνῃ Carm.Aur. 19 , also in codd. of S. Ph. 798 , E. Hec. 253 , Andr. 239 , and later Prose, Plb. 7.11.5 , Ael. VH 13.32 ; Aeol. and Dor. δύνᾳ Alc. Oxy. 1788 Fr. 15 ii 16 , Theoc. 10.2 , also S. Ph. 849 (lyr.), dub. in OT 696 (lyr.); δύνῃ is subj., Ar. Eq. 491 , cf. Phryn. 337 ; Ion. 3 pl. δυνέαται Hdt. 2.142 ; subj. δύνωμαι, Ion. 2 sg. δύνηαι Il. 6.229 (δυνεώμεθα -ωνται as vv.ll. in Hdt. 4.97 , 7.163 ); also δύνᾱμαι Sapph. Supp. 3.3 , GDI 4952 A 42 (Crete): impf. 2 sg. ἐδύνω h.Merc. 405 , X. An. 1.6.7 ; later ἐδύνασο Hp. Ep. 16 ( v.l. ἠδ. ), Luc. DMort. 9.1 ; Ion. 3 pl. ἐδυνέατο Hdt. 4.110 , al.(ἠδ- codd.): fut. δυνήσομαι Od. 16.238 , etc.; Dor. δυνᾱσοῦμαι Archyt. 3 ; later δυνηθήσομαι D.C. 52.37 : aor. ἐδυνησάμην Il. 14.33 , Ep. δυν- 5.621 ; subj. δυνήσωνται Semon. 1.17 , never in good Att., f. l. in D. 19.323 : Pass. forms, Ep., Ion., Lyr., ἐδυνάσθην or δυνάσθην Il. 23.465 , al., Hdt. 2.19 , al., Pi. O. 1.56 , Hp. Art. 48 ( v.l. δυνηθείη ), also in X. Mem. 1.2.24 , An. 7.6.20 ; Trag. and Att. Prose ἐδυνήθην S. Aj. 1067 , OT 1212 (lyr.), E. Ion 867 (anap.), D. 21.80 , 186 : pf. δεδύνημαι D. 4.30 , Din. 2.14 , Phld. Rh. 1.261S. —The double augment ἠδυνάμην is Att. acc. to Moer. 175 , but Ion. acc. to An.Ox. 2.374 , and is found in codd. of Hdt. 4.110 , al., Hp. Epid. 1.26 .β’, al.; ἠδύνω is required by metre in Philippid. 16 ; but is not found in Att. Inscrr. before 300 B.C., IG 22.678.12 , al., cf. ἠδύνασθε ib. 7.2711 (Acraeph., i A.D.); both forms occur in later writers: ἠδυνήθην occurs in A. Pr. 208 , and codd. of Th. 4.33 , Lys. 3.42 , etc.: δύνομαι is a late form freq. in Pap. as UPZ 9 (ii B. C.), al.[ῠ, exc. in δῡναμένοιο Od. 1.276 , 11.414 , Hom. Epigr. 15.1 , and pr. n. Δῡναμένη, metri gr.]

I). to be able, strong enough to do, c. inf. pres. et aor., Il. 19.163 , 1.562 , etc.: fut. inf. is f.l.(πείσειν for πείθειν) in S. Ph. 1394 ,(κωλύσειν for κωλῦσαι) Plb. 21.11.13 , etc.: freq. abs., with inf. supplied from the context, εἰ δύνασαί γε if at least thou canst (sc. περισχέσθαι), Il. 1.393 : also c. acc. Pron. or Adj., ὅσσον δύναμαι χερσίν τε ποσίν τε 20.360 ;[ Ζεὺς] δύναται ἅπαντα Od. 4.237 ; μέγα δυνάμενος very powerful, mighty, 1.276 , cf. 11.414 ; δ. μέγιστον ξείνων Hdt. 9.9 , etc.; μέγα δύναται, multum valet, A. Eu. 950 (lyr.); δ. Διὸς ἄγχιστα Id. Supp. 1035 ; οἱ δυνάμενοι men of power, rank, and influence, E. Or. 889 , Th. 6.39 , etc.; οἱ δυνάμενοι, opp. οἱ μὴ ἔχοντες, Democr. 255 ; opp. οἱ πένητες, Archyt. 3 ; δυνάμενος παρά τινι having influence with him, Hdt. 7.5 , And. 4.26 , etc.; δύνασθαι ἐν τοῖς πρώτοις Th. 4.105 ; δ. τοῖς χρήμασι, τῷ σώματι, Lys. 6.48 , 24.4 ; ὁ δυνάμενος one that can maintain himself, Id. 24.12 ; of things,[διαφέρει] οἷς δύνανται differ in their potentialities, Plot. 6.3.17 .

2). of moral possibility, to be able, dare, bear to do a thing, mostly with neg., οὔτε τελευτὴν ποιῆσαι δύναται Od. 1.250 ; σε .. οὐ δύναμαι προλιπεῖν 13.331 , cf. S. Ant. 455 ; οὐκέτι ἐδύνατο ἐν τῷ καθεστῶτι τρόπῳ βιοτεύειν Th. 1.130 ; οὐδὲ σθένειν τοσοῦτον ᾠόμην τὰ σὰ κηρύγμαθ’ ὥστε .. θεῶν νόμιμα δύνασθαι .. ὑπερδραμεῖν S. Ant. 455 .

b). enjoy a legal right, δ. τῆς γεωργίας ἀπηλλάχθαι POxy. 899.31 (ii/iii A.D.), etc.

3). with ὡς and Sup., ὡς ἐδύναντο ἀδηλότατα as secretly as they could, Th. 7.50 ; ὡς δύναμαι μάλιστα κατατείνας as forcibly as I possibly can, Pl. R. 367b ; ὡς δύναιτο κάλλιστον Id. Smp. 214c ; ὡς ἂν δύνωμαι διὰ βραχυτάτων D. 27.3 , etc.; simply ὡς ἐδύνατο in the best way he could, X. An. 2.6.2 : with relat., ὅσους ἐδύνατο πλείστους ἀθροίσας Id. HG 2.2.9 ; λαβεῖν .. οὓς ἂν σοφωτάτους δύνωμαι Alex. 213 .

II). to be equivalent to, λόγοι ἔργα δυνάμενοι words that are as good as deeds, Th. 6.40 : hence,

1). of money, to be worth, c. acc., ὁ σίγλος δύναται ἑπτὰ ὀβολούς X. An. 1.5.6 , cf. D. 34.23 : abs., pass, be current, Luc. Luct. 10 .

2). of Number, etc., to be equal or equivalent to, τριηκόσιαι γενεαὶ δυνέαται μύρια ἔτεα Hdt. 2.142 ; δυνήσεται τὴν ὑποτείνουσαν will be equivalent to the hypotenuse, Arist. IA 709a19 .

3). of words, signify, mean, Hdt. 4.110 , al.; τὸ πειρηθῆναι καὶ τὸ ποιεῖν ἴσον δύναται Id. 6.86 . γ/; δύναται ἴσον τῷ δρᾶν τὸ νοεῖν Ar. Fr. 691 ; δύναται τὸ νεοδαμῶδες ἤδη ἐλεύθερον εἶναι Th. 7.58 : in later Greek, δύναται τὸ "μνασθέντι" ἀντὶ τοῦ "μνασθέντος" is equivalent to .. , Sch. Pi. O. 7.110 .

b). avail to produce, οὐδένα καιρὸν δύναται brings no advantage, E. Med. 128 (anap.), cf. Pl. Phlb. 23d .

c). of things, mean, 'spell', τὸ τριβώνιον τί δύναται; Ar. Pl. 842 ; αἱ ἀγγελίαι τοῦτο δύνανται they mean this much, Th. 6.36 ; τὴν αὐτὴν δ. δούλωσιν Id. 1.141 , cf. Arist. Pol. 1313b25 .

4). Math., δύνασθαί τι to be equivalent when squared to a number or area, τοῖς ἐπιπέδοις ἃ δύνανται in the areas of which they [the lines] are the roots, Pl. Tht. 148b ; ἡ ΒΓ τῆς Α μεῖζον δύναται τῇ ΔΖ the square on ΒΓ is greater than the square on A by the square on ΔΖ, Euc. 10.17 ; αἱ δυνάμεναι αὐτά [τὰ μεγέθη] the lines representing their square roots, ib. Def. 4 , cf. Prop. 22 ; αὐξήσεις δυνάμεναί τε καὶ δυναστευόμεναι increments both in the roots and powers of numbers, Pl. R. 546b ; τὴν ὑποτείνουσαν ταῖς περὶ τὴν ὀρθὴν ἴσον δυναμένην Plu. 2.720a , cf. Iamb. Comm.Math. 17 ; ἡ δυναμένη, Pythag. name for the hypotenuse of a right-angled triangle, Alex.Aphr. in Metaph. 75.31 .

b). of numbers multiplied together, come to, Papp. 1.24 , 27 .

III). impers., οὐ δύναται, c. aor. inf., it cannot be, is not to be, τοῖσι Σπαρτιήτῃσι καλλιερῆσαι οὐκ ἐδύνατο Hdt. 7.134 , cf. 9.45 ; δύναται it is possible, Plu. 2.440e (s. v.l.).