1. to send forth, send to war , (Aeschulus Tragicus); ἐξ. τὴν ναῦν to start the ship, set it agoing , (Thucydides):—;Pass. to set out, start , (Herdotus Historicus), etc.; of arrows, to spring from the bow, (Euripides)

2. to excite to action, urge on , (Euripides)

3. intransitive, like Pass. to set out, start , of a ship, (Odyssey by Homer): with genitive to set out from , (Euripides):—;metaphorically to break out , of a disease, (Sophocles Tragicus); σφοδρὸς ἐφ᾽ ὅ τι ἐφορμήσειε eager in all that he attempted , (Plato Philosophus) (ML)