take vigorous measures
From LSJ
στάζει γὰρ αὖ μοι φοίνιον τόδ᾽ἐκ βυθοῦ κηκῖον αἷμα → blood oozing from the deep wound, bloody gore drops oozing from the depths of my wound
English > Greek (Woodhouse)
take vigorous measures = exert oneself: διατείνεσθαι, συντείνειν, τείνειν, ἐντείνειν, σπουδάζειν, ὁρμᾶσθαι, ἐντείνεσθαι