ἰσχυρόψυχος
From LSJ
Λεύσσετε, Θήβης οἱ κοιρανίδαι τὴν βασιλειδᾶν μούνην λοιπήν, οἷα πρὸς οἵων ἀνδρῶν πάσχω → See, you leaders of Thebes, what sorts of things I, its last princess, suffer at the hands of such men
English (LSJ)
ον,
A strong-souled, Hsch.s.v. λάσιον κῆρ.
German (Pape)
[Seite 1273] von starker Seele, Apoll. L. H. ἴφθιμος.