ἁρμοστέον
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 one must adapt, A.D.Pron.79.9 codd.; one must apply, Ps.-Democr.Alch. p.47B.
Greek (Liddell-Scott)
ἁρμοστέον: ῥημ. ἐπίθ. τοῦ ἁρμόζω, δεῖ ἁρμόζειν , Κλήμ., Ἁλ. 196.
