Source : Webster's Revised Unabridged Dictionary (1913)

Custard \Cus"tard\ (k?s"t?rd), n. [Prob. the same word as OE.
   crustade, crustate, a pie made with a crust, fr. L. crustatus
   covered with a crust, p. p. of crustare, fr. crusta crust;
   cf. OF. croustade pasty, It. crostata, or F. coutarde. See
   {Crust}, and cf. {Crustated}.]
   A mixture of milk and eggs, sweetened, and baked or boiled.

   {Custard apple} (Bot.), a low tree or shrub of tropical
      America, including several species of Anona ({A.
      squamosa}, {reticulata}, etc.), having a roundish or ovate
      fruit the size of a small orange, containing a soft,
      yellowish, edible pulp.

   {Custard coffin}, pastry, or crust, which covers or coffins a
      custard [Obs.] --Shak.