What does Aarnav mean?
From the Sanskrit अर्णव (arṇava), meaning 'ocean' or 'sea', literally 'the foaming/surging water'. A well-established classical Sanskrit word for a great body of water, commonly spelled Arnav or Aarnav.
What does Surya mean?
Sanskrit name meaning 'the sun' and the name of the Hindu sun god. The fire connection is the sun as a celestial fire rather than fire directly; its primary sense is 'sun'.