ἠδυνήθησαν (edynethesan)
ἠδυνήθησαν is an Ancient Greek form of δύναμαι, meaning “to be able, can”. It is the 3rd person plural aorist passive indicative.
Found 56 times in the Ancient Greek texts on Socratos.
Where it is used
Plutarch, Cimon 8.2: … ον; ἢ ὅτι τῶν μὲν ἄλλων στρατηγούντων ὑπὲρ τοῦ μὴ παθεῖν ἠμύνοντο τοὺς πολεμίους, τούτου δὲ καὶ ποιῆσαι κακῶς ἠδυνήθησαν ἐπὶ τὴν ἐκείνων αὐτοὶ στρατεύσαντες, καὶ προσεκτήσαντο χώρας αὐτήν τε τὴν Ἠϊόνα καὶ τὴν Ἀμφίπολιν οἰκίσαντες;
Cassius Dio Cocceianus, Historia Romana 36.44.4: … ούκιος Κατιλίνας ἀνὴρ θρασύτατος (ᾐτήκει δὲ καὶ αὐτὸς τὴν ἀρχήν, καὶ διὰ τοῦτο ὀργὴν ἐποιεῖτο), οὐ μέντοι καὶ ἠδυνήθησάν τι δρᾶσαι διὰ τὸ τήν τε ἐπιβουλὴν προμηνυθῆναι καὶ φρουρὰν τῷ τε Κόττᾳ καὶ τῷ Τορκουάτῳ παρὰ τῆς βουλῆς
All forms of δύναμαι (conjugation table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Liddell-Scott-Jones, A Greek-English Lexicon (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.