Lexical Definition

‎δύναμαι‎ dýnamai (doo'-nam-ahee) be able ^G:V
of uncertain affinity

be able, can (do, + -not), could, may, might, be possible, be of power.

• to be able or possible

Abbott-Smith

δύναμαι, depon., [in LXX chiefly for יָכֹל ;]
to be able, have power, whether by personal ability, permission, or opportunity: c. inf. (M, Pr., 205; WM, § 44, 3) pres., Mt 6:24, Mk 2:7, Jo 3:2, I Co 10:21, al.; c. inf. aor., Mt 3:9, Mk 1:45, Jo 3:3, 4 Ro 8:39, al.; c. acc., to be able to do something: Mk 9:22, Lk 12:26; II Co 13:8; absol., to be able, capable, powerful: I Co 3:2 10:13.

Abbott-Smith References

Liddell-Scott-Jones

δύναμαι [ῠ],

2nd pers. singular δύνασαι [Refs 8th c.BC+]; Aeolic dialect and Doric dialect δύνᾳ [Refs 7th c.BC+]; δύνῃ is subjunctive, [Refs 5th c.BC+]; Ionic dialect 3rd.pers. plural δυνέαται [Refs 5th c.BC+]; subjunctive δύνωμαι, Ionic dialect 2nd pers. singular δύνηαι [Refs 8th c.BC+]: imperfect 2nd pers. singular ἐδύνω [Refs 5th c.BC+]; Ionic dialect 3rd.pers. plural ἐδυνέατο [Refs 5th c.BC+]: future δυνήσομαι [Refs 8th c.BC+]; Doric dialect δυνᾱσοῦμαι [Refs 4th c.BC+]: aorist ἐδυνησάμην [Refs 8th c.BC+], Epic dialect δυν- [Refs]; subjunctive δυνήσωνται [Refs 7th c.BC+], never in good Attic dialect, falsa lectio in [Refs 4th c.BC+]passive forms, Epic dialect, Ionic dialect, Lyric poetry, ἐδυνάσθην or δυνάσθην [Refs 8th c.BC+]; Trag. and Attic dialect Prose ἐδυνήθην [Refs 5th c.BC+]: perfect δεδύνημαι [Refs 4th c.BC+] —The double augment ἠδυνάμην is Attic dialect accusative to [Refs 2nd c.AD+], but Ionic dialect accusative to [Refs 5th c.BC+]; ἠδύνω is required by metre in [Refs 4th c.BC+]; both forms occur in later writers: ἠδυνήθην occurs in [Refs 5th c.BC+] is a late form frequently in Papyrus as [Refs 2nd c.BC+] [ῠ, except in δῡναμένοιο [Refs 8th c.BC+]

__I to be able, strong enough to do, with infinitive present et aorist, [Refs 8th c.BC+], etc.: future infinitive is falsa lectio (πείσειν for πείθειν) in [Refs 5th c.BC+], etc.: frequently absolutely, with infinitive supplied from the context, εἰ δύνασαί γε if at least thou canst (i.e. περισχέσθαι), [Refs 8th c.BC+]: also with accusative pronoun or adjective, ὅσσον δύναμαι χερσίν τε ποσίν τε [Refs 8th c.BC+]; μέγα δυνάμενος very powerful, mighty, [Refs 5th c.BC+]; μέγα δύναται, multum valet, [Refs 4th c.BC+]; οἱ δυνάμενοι men of power, rank, and influence, [Refs 5th c.BC+]; οἱ δυνάμενοι, opposed to οἱ μὴ ἔχοντες, [Refs 3rd c.AD+]; opposed to οἱ πένητες, [Refs 4th c.BC+]; δυνάμενος παρά τινι having influence with him, [Refs 5th c.BC+]; δ. τοῖς χρήμασι, τῷ σώματι, [Refs 5th c.BC+]; ὁ δυνάμενος one that can maintain himself, [Refs]; of things, [διαφέρει] οἷς δύνανται differ in their potentialities, [Refs 3rd c.AD+]
__I.2 of moral possibility, to be able, dare, bear to do a thing, mostly with negative, οὔτε τελευτὴν ποιῆσαι δύναται [Refs 8th c.BC+]
__I.2.b enjoy a legal right, δ. τῆς γεωργίας ἀπηλλάχθαι [Refs 2nd c.AD+]
__I.3 with ὡς and superlative, ὡς ἐδύναντο ἀδηλότατα as secretly as they could, [Refs 5th c.BC+]; ὡς δύναμαι μάλιστα κατατείνας as forcibly as I possibly can, [Refs 5th c.BC+]; simply ὡς ἐδύνατο in the best way he could, [Refs 5th c.BC+]
__II to be equivalent to, λόγοι ἔργα δυνάμενοι words that are as good as deeds, [Refs 5th c.BC+]
__II.1 of money, to be worth, with accusative, ὁ σίγλος δύναται ἑπτὰ ὀβολούς [Refs 5th c.BC+]: absolutely, pass, be current, [Refs 2nd c.AD+]
__II.2 of Number, etc., to be equal or equivalent to, τριηκόσιαι γενεαὶ δυνέαται μύρια ἔτεα [Refs 5th c.BC+]; δυνήσεται τὴν ὑποτείνουσαν will be equivalent to the hypotenuse, [Refs 4th c.BC+]
__II.3 of words, signify, mean, [Refs 5th c.BC+]is equivalent to.., [Refs 5th c.BC+]
__II.3.b avail to produce, οὐδένα καιρὸν δύναται brings no advantage, [Refs 5th c.BC+]
__II.3.c of things, mean, 'spell', τὸ τριβώνιον τί δύνατα; [Refs 5th c.BC+]; αἱ ἀγγελίαι τοῦτο δύνανται they mean this much, [Refs 5th c.BC+]
__II.4 in Mathematics texts, 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, [Refs 5th c.BC+]; ἡ ΒΓ τῆς Α μεῖζον δύναται τῇ ΔΖ the square on ΒΓ is greater than the square on A by the square on ΔΖ, [Refs 3rd c.BC+]; αἱ δυνάμεναι αὐτά [τὰ μεγέθη] the lines representing their square roots,[Refs]; αὐξήσεις δυνάμεναί τε καὶ δυναστευόμεναι increments both in the roots and powers of numbers, [Refs 5th c.BC+]; ἡ δυναμένη, [Refs 4th c.BC+] name for the hypotenuse of a right-angled triangle, [Refs 3rd c.AD+]
__II.4.b of numbers multiplied together, come to, [Refs 3rd c.AD+]
__III impersonal, οὐ δύναται, with aorist infinitive, it cannot be, is not to be, τοῖσι Σπαρτιήτῃσι καλλιερῆσαι οὐκ ἐδύνατο [Refs 5th c.BC+]; δύναται it is possible, [Refs 1st c.AD+]