सैsai1 P. (सायति) To waste away, decline, perish.
1 Parasmaipada (सायति) To waste away, decline, perish.
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.