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.
Entry क्षिप्र
क्षिप्रkṣipraa.Elastic (as a bow); ऋतज्येन क्षिप्रेण ब्रह्मणस्पतिः Rv.2.24.8.