Source : Webster's Revised Unabridged Dictionary (1913)

Maundy \Maun"dy\, n. [See {Maundy Thursday}.]
   1. The sacrament of the Lord's Supper. [Obs.]

   2. The ceremony of washing the feet of the poor on Maundy
      Thursday.

   3. The alms distributed in connection with this ceremony or
      on Maundy Thursday.

   Note: In England, the foot washing is obsolete, but the
         ``royal maundy'' is distributed annually on behalf of
         the sovereign. Since 1890 this distribution has been
         made from Westminster Abbey.

Source : WordNet®

Maundy
     n : a public ceremony on Maundy Thursday when the monarch
         distributes Maundy money