प्रोर्णुprorṇu2 U. To cover completely, envelop.
2 Ubbayapada (Parasmaipada and Atmanepada) To cover completely, envelop.
कोशःDictionaries
V. S. Apte, The Practical Sanskrit–English Dictionary. Look up any word of the Gita in Devanagari, IAST or Harvard-Kyoto, or browse the headwords letter by letter.