δυνηθεῖεν (dynetheien)
δυνηθεῖεν is an Ancient Greek form of δύναμαι, meaning “to be able, can”. It is the 3rd person plural aorist passive optative.
Found 38 times in the Ancient Greek texts on Socratos.
Where it is used
Plutarch, Apophthegmata Laconica 59.3: πυνθανομένου δέ τινος αὐτοῦ, πῶς ἂν δυνηθεῖεν τοὺς Θρᾷκας νικῆσαι, εἰ τὸν ἄριστον εἶπε στρατηγὸν καταστήσαιμεν.
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.