ἔφαλσις
From LSJ
ἐπεὰν νῶτον ὑὸς δελεάσῃ περὶ ἄγκιστρον, μετιεῖ ἐς μέσον τὸν ποταμόν, ὁ κροκόδειλος ἵεται κατὰ τὴν φωνήν, ἐντυχὼν δὲ τῷ νώτῳ καταπίνει → when he has baited a hog's back onto a hook, he throws it into the middle of the river, ... the crocodile lunges toward the voice of a squealing piglet, and having come upon the hogback, swallows it
English (LSJ)
εως, ἡ,
A bouncing on to a surface, Arist.Pr.913b30 (s. v. l.).
German (Pape)
[Seite 1112] ἡ, das Darauflosspringen, der Angriff.
Greek (Liddell-Scott)
ἔφαλσις: -εως, ἡ, τὸ ἐφάλλεσθαι ἐπί τινος, Ἀριστ. Προβλ. 16. 4, 4.
Russian (Dvoretsky)
ἔφαλσις: εως ἡ прыжок, скачок Arst.