Latin deus and Greek Zeus are etymologically connected with Ṛgvedic deity Dyauspitar, the sky deity. All in turn connected to the proto-indo-european "daylight-

Latin deus and Greek Zeus are etymologically connected with Ṛgvedic deity Dyauspitar, the sky deity. All in turn connected to the proto-indo-european "daylight-sky father" deity *Dyḗus ph₂tḗr. Latin also contains a cognate of "deus" that retains more features of the PIE form, namely Jupiter.