Zeus the nominative is ("Zeús"). It is inflected as follows: vocative: (""); accusative: (); genitive: (); dative: (). Diogenes Laertius quotes Pherecydes of Syros as spelling the name, . "Zeus" is the Greek continuation of *"," the name of the Proto-Indo-European god of the daytime sky, also called *' ("Sky Father"). The god is known under this name in the Rigveda (Vedic Sanskrit "Dyaus/Dyaus Pita"), Latin (compare "Jupiter", from "Iuppiter", deriving from the Proto-Indo-European vocative *'), deriving from the root *"dyeu"- ("to shine", and in its many derivatives, "sky, heaven, god"). Zeus is the only deity in the Olympic pantheon whose
King of the Romans king might retain the title "King of the Romans" for his entire reign. The title "Romanorum Rex" became functionally obsolete after 1508, when the Pope permitted King Maximilian I to use the title of "Electus Romanorum Imperator" ("elected Emperor of the Romans") after he failed in a good-faith attempt to journey to Rome. At this time Maximilian also took the new title "King of the Germans" or "King in Germany" ("Germaniae rex", "König in Germanien"), but the latter was never used as a primary title. The rulers of the Empire thereafter called themselves "Emperors" without going to Rome or soliciting