KJV ¹² And the ten horns which thou sawest are ten kings, which have received no kingdom as yet; but receive power as kings one hour with the beast.

TR1550 ¹² καὶ τὰ δέκα κέρατα ἃ εἶδες δέκα βασιλεῖς εἰσιν οἵτινες βασιλείαν οὔπω ἔλαβον ἀλλ᾽ ἐξουσίαν ὡς βασιλεῖς μίαν ὥραν λαμβάνουσιν μετὰ τοῦ θηρίου