Source : Webster's Revised Unabridged Dictionary (1913)

Commiserate \Com*mis"er*ate\, v. t. [imp. & p. p.
   {Commiserated}; p. pr. & vb. n. {Commiserating}.] [L.
   commiseratus, p. p. of commiserari to commiserate; com- +
   miserari to pity. See {Miserable}.]
   To feel sorrow, pain, or regret for; to pity.

         Then must we those, who groan, beneath the weight Of
         age, disease, or want, commiserate.      --Denham.

         We should commiserate our mutual ignorance. --Locke.

   Syn: To pity; compassionate; lament; condole.