ἐπεισδύνω
From LSJ
ἀναβάντα γὰρ εἰς τὴν ἀκρόπολιν, καὶ διὰ τὴν ὑπερβολὴν τῆς λύπης προσκόψαντα τῷ ζῆν, ἑαυτὸν κατακρημνίσαι → for he ascended the acropolis and then, because he was disgusted with life by reason of his excessive grief, cast himself down the height
Greek (Liddell-Scott)
ἐπεισδύνω: μεταγεν. ἐπεισδύω, ἐπεισέρχομαι, λανθάνει γὰρ ἐπεισδύουσα ἡ παράβασις Ἀριστ. Πόλιτικ. 5. 8, 2.