αντίπολις

From LSJ

ἐὰν ἃ τοῖς ἄλλοις ἐπιτιμῶμεν, αὐτοὶ μὴ δρῶμεν → avoid doing what you would blame others for doing

Source

Greek Monolingual

ἀντίπολις, η (Α)
αντίπαλη, εχθρική πόλη.