urge on, set on
Ancient Greek word, found 50 times in the texts on Socratos.
Homer, Iliad 1.173: φεῦγε μάλʼ εἴ τοι θυμὸς ἐπέσσυται, οὐδέ σʼ ἔγωγε
Homer, Odyssey 4.454: ἡμεῖς δὲ ἰάχοντες ἐπεσσύμεθʼ, ἀμφὶ δὲ χεῖρας
Apollonius Rhodius, Argonautica 1.758: πῖπτεν, ἐπεσσύμενος Πελοπήια νῶτα δαΐξαι.
All forms of ἐπισεύω