Vaṃśānuvārṇana and the Transition to the Fourth (Upasaṃhāra) Pada
प्रच्छाद्यति महीमेतामर्णवाख्यं तु तज्जलम् / आभाति यस्मात्तद्भाभिर्भाशब्दो व्याप्तिदीप्तिषु
pracchādyati mahīmetāmarṇavākhyaṃ tu tajjalam / ābhāti yasmāttadbhābhirbhāśabdo vyāptidīptiṣu
That water veils this earth, and therefore is called “arṇava,” the ocean; and since it shines by its own radiance, the word “bhā” bears the sense of pervasion and brilliance.