from the GNU version of the Collaborative International Dictionary of English
- proper n. the Hindu god of the sky; same as dyaus.
Sorry, no etymologies found.
But the Vedic Dyu or Dyaus-pitar is first of all a masculine, while in later Sanskrit only it becomes exclusively a feminine.
In the Veda we find Zeus or Jupiter (Dyaus-pitar) meaning the sky, and Sarameias or Hermes, meaning the breeze of a summer morning.
"Dyaus-pitar," or God the Father, as among the Greeks we have