κοῦ
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)
κου, Ion. for ποῦ, που. κοῦα· ἐνέχυρα, and κουάσαι· ἐνεχυριάσαι, Hsch.; cf. κοῖον, κῷα. κούαγμα· σκῆμα, Id. κούαμα· μέλαν (Lacon.), Id. (fort. κουάνια ( κυάνεα) · μέλανα).