Where does “jovial” come from?
jovial (Middle French) comes from Italian gioviale, from Latin ioviālis, 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 “jovial”, step by step