κερδαντός
From LSJ
τοῖς οἰκείοις βουλεύμασιν ἁλίσκεσθαι → hoist by one's own petard, hoist with one's own petard, hoist on one's own petard, hoisted by one's own petard, be hoist with one's own petard
English (LSJ)
ή, όν,
A that ought to be gained: τὰ κερδαντὰ κερδαίνειν to make fair gains, Periand. ap. D.L.1.97.
German (Pape)
[Seite 1423] adj. verb. zu κερδαίνω, woraus man Gewinn ziehen darf, D. L. 1, 97; κερδαντέος, M. Ant. 4, 26.