According to the source, "Godless Evidence: The Origin of Every God," the pronunciation of Jove in ancient Latin was "Yowe" or "Yohweh," a result of the pronunciation of the letter J (which was previously represented as I) as a Y and the pronunciation of the letter V as a W. The name is a corruption of Deywos, Djous, and Dyeus.
Ancient Romans worshipped Yohweh before calling Yohweh: Jupiter.