निस्वप् [ nisvap ] [ ni-√ svap ] (Impv. [ -svapa ] ; pf. [ -suṣupur ] ) , to fall asleep (also = meet death , die , Lit. vii , 18 , 14) Lit. RV. : Caus. [ -svāpayati ] ( [ -ṣv ] ) , to cause to sleep , lull asleep Lit. RV. Lit. AV. Lit. ŚBr. ; to kill Lit. RV. vii , 19 , 4.