Anona squamosa

from The Collaborative International Dictionary of English v.0.48

Sweet-sop \Sweet"-sop`\, n. (Bot.)
   A kind of custard apple ({Anona squamosa}). See under
   {Custard}.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Custard \Cus"tard\ (k[u^]s"t[~e]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.
   [1913 Webster]

   {Custard apple} (Bot.), a low tree or shrub of tropical
      America, including several species of {Anona} ({Anona
      squamosa}, {Anona 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.
      [1913 Webster]