Where does “Ιούλιος” come from?
Ιούλιος (Greek) comes from Koine Greek Ἰούλιος, from Latin Iūlius, from Latin iuppiter, from Proto-Italic djous patēr, from Proto-Italic *djous, from Proto-Indo-European dyḗws, from Proto-Indo-European dyéws, from Proto-Indo-European dyew- — to be bright; sky, heaven.
Ancestry of “Ιούλιος”, step by step