Webster's Revised Unabridged Dictionary · 1913

Custard

Custard (kus"tẽrd) , noun

[Probably the same word as Old English crustade, crustate, a pie made with a crust, from Latin crustatus covered with a crust, past participle of crustare, from crusta crust; compare Old French croustade pasty, Italian crostata, or French coutarde. See Crust, and compare Crustated.]

A mixture of milk and eggs, sweetened, and baked or boiled.
Collocations (2)
Custard apple (Botany) , 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 [Obsolete] — Shakespeare