Revelation 17:12

Καὶ τὰ δέκα κέρατα, ἃ εἶδες, δέκα βασιλεῖς εἰσίν, οἵτινες βασιλείαν οὔπω ἔλαβον, ἀλλ᾽ ἐξουσίαν ὡς βασιλεῖς μίαν ὥραν λαμβάνουσι μετὰ τοῦ θηρίου.

RBT Translation:

And the Ten Horns which you perceived, they are ten kings, anyone who has not yet taken hold of a queen, but rather are taking hold of an authority as kings for one seasonal time in company with the Wild Animal.

Julia Smith Literal 1876 Translation:
And the ten horns which thou sawest are ten kings, which took not yet the kingdom; but take power as kings one hour with the beast.

LITV Translation:
And the ten horns you saw are ten kings who have not yet received a kingdom, but will receive authority as kings one hour with the beast.