κύριος εἶναι

From LSJ

γλῶσσα πολλοὺς εἰς ὄλεθρον ἤγαγεν → Multis hominibus lingua perniciem attulit → Die Zunge brachte viele ins Verderben schon

Menander, Monostichoi, 205

Greek > English (Woodhouse)

be in force, be master of, be valid