प्रस्वृprasvṛ1 P. To lengthen or prolate a tone in uttering.
1 Parasmaipada To lengthen or prolate a tone in uttering.
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.