συνεργεῖν (synergein)
συνεργεῖν is an Ancient Greek form of συνεργέω, meaning “work together, cooperate”. It is the present active infinitive.
Found 43 times in the Ancient Greek texts on Socratos.
Where it is used
Plutarch, Romulus 21.5: … ι τὸν ἐμποδὼν παίοντες. αἱ δʼ ἐν ἡλικίᾳ γυναῖκες οὐ φεύγουσι τὸ παίεσθαι, νομίζουσαι πρὸς εὐτοκίαν καὶ κύησιν συνεργεῖν. ἴδιον δὲ τῆς ἑορτῆς τὸ καὶ κύνα θύειν τοὺς Λουπέρκους.
All forms of συνεργέω (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.