ἔγνω δὲ φώρ τε φῶρα καὶ λύκος λύκον → the thief knows the thief and the wolf knows the wolf, and thief knows thief and wolf his fellow wolf, set a thief to catch a thief
δημαρχία, αὐτοκρασία, αὐθεντία, δεσποτεία, μοναρχία, μουναρχία, μουναρχίη