Source : Webster's Revised Unabridged Dictionary (1913)

Lull \Lull\, v. i.
   To become gradually calm; to subside; to cease or abate for a
   time; as, the storm lulls.

Lull \Lull\, n.
   1. The power or quality of soothing; that which soothes; a
      lullaby. [R.] --Young.

   2. A temporary cessation of storm or confusion.

Lull \Lull\, v. t. [imp. & p. p. {Lulled}; 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.

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

Source : WordNet®

lull
     n 1: a pause during which things are calm or activities are
          diminished; "there was never a letup in the noise" [syn:
           {letup}]
     2: a period of calm weather; "there was a lull in the storm"
        [syn: {quiet}]
     v 1: calm by deception; "Don't let yourself be lulled into a
          false state of security"
     2: become quiet or less intensive; "the fighting lulled for a
        moment" [syn: {calm down}]
     3: make calm or still; "quiet the dragons of worry and fear"
        [syn: {calm}, {calm down}, {quiet}, {tranquilize}, {tranquillize},
         {tranquillise}, {quieten}, {still}] [ant: {agitate}]