निषूद्niṣūd1 U. or Caus. To kill, slay.
1 Ubbayapada (Parasmaipada and Atmanepada) or Causal To kill, slay.
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.