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
SourceGreek (Liddell-Scott)
ἵρηξ: ηκος, ὁ, Ἰων. καὶ Ἐπικ. ἀντὶ ἱέραξ, Ὅμ., Ἡσ.
Greek Monotonic
ἵρηξ: -ηκος, ὁ, Ιων. αντί ἱέραξ.