ἕργμα
From LSJ
τοῖς οἰκείοις συκοφαντίαν δέδωκεν → has given to his friends an opportunity for chicane, has offered to his friends the right of vindictive prosecution
English (LSJ)
ατος, τό
A, (εἵργω) fence, guard, Arist.PA658b18 ; τάφου S. Ant.848 (lyr.); obstacle, Hp.Steril.213 ; means of hindering, δυνάμεως Hierocl. in CA24p.473M.