Where does “diwyás” come from?

diwyás (Proto-Indo-Aryan) comes from Proto-Indo-Iranian diwyás, from Proto-Indo-European diwyós, from Proto-Indo-European dyew- — to be bright; sky, heaven.

Ancestry of “diwyás”, step by step

StepLanguageWordMeaning
1Proto-Indo-Iraniandiwyás—
2Proto-Indo-Europeandiwyósheavenly
3Proto-Indo-Europeandyew-to be bright; sky, heaven
Every word from Proto-Indo-European dyew- →Every word from Proto-Indo-European diwyós →Every word from Proto-Indo-Iranian diwyás →