श्वल्śval1 P. (श्वलति) To run, go quickly.
1 Parasmaipada (श्वलति) To run, go quickly.
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.