ἀγμός
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)
ὁ, (ἄγνυμι)
A fracture of a bone, περὶἀγμῶν, title of treatise by Hp., etc. II broken cliff, crag, E.IT263; pl., Id.Ba.1094, Nic.Al.391, St.Byz. s.v. Ὀαξός.