The Collaborative International Dictionary of English v.0.48:

Lull \Lull\ (l[u^]l), v. t. [imp. & p. p. Lulled (l[u^]ld); p.
   pr. & vb. n. Lulling.] [Akin to OD. lullen to sing to
   sleep, G. lullen, Dan. lulle, Sw. lulla; all of imitative
   origin. Cf. Loll, Lollard.]
   To cause to rest by soothing influences; to compose; to calm;
   to soothe; to quiet. " To lull him soft asleep." --Spenser.
   [1913 Webster]

         Such sweet compulsion doth in music lie,
         To lull the daughters of necessity.      --Milton.
   [1913 Webster]