विस्तरvistara1 Extension, expansion.
विस्तरेणात्मनो योगं विभूतिं च जनार्दन ।
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.