1. to shake at or against , with the view of scaring, τί τινι (Iliad by Homer); Πέρσας ἐπ. to hold them out as a threat , (Plutarch); but, ἐπ. τὴν χεῖρα, in token of assent, (Lucian)

2. to set upon one, with dative, (Euripides) (ML)