प्रक्ष्णुprakṣṇu2 P. To sharpen, whet.
2 Parasmaipada To sharpen, whet.
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.