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
ἀποδεκάτωσις: -εως, ἡ, λῆψις τοῦ δεκάτου, Ἐπιφάν. τ. 1. σ. 20Α.