ἐμβυθίζω
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)
A cause to sink to the bottom, Plu.2.981a (Pass.).
German (Pape)
[Seite 807] in die Tiefe versenken, Plut. sol. an. 31.