Dyaus, derived from the Sanskrit द्यु (dyu) meaning 'sky', is a significant deity in the Rigveda, representing the sky. He is often referred to as Dyaus Pita, meaning 'father sky', and is considered the consort of Prithvi, the earth goddess. This name is deeply rooted in Indo-European mythology, with cognates in Greek (Zeus) and Latin (Jupiter), highlighting its widespread cultural and linguistic influence.