Source : Webster's Revised Unabridged Dictionary (1913)

Drool \Drool\, v. i. [imp. & p. p. {Drooled}; p. pr. & vb. n.
   {Drooling}.] [Contr. fr. drivel.]
   To drivel, or drop saliva; as, the child drools.

         His mouth drooling with texts.           -- T. Parker.