The Collaborative International Dictionary of English v.0.48:

Costardmonger \Cos"tard*mon`ger\ (-m?n`g?r), n.
   A costermonger.
   [1913 Webster] Costate

The Collaborative International Dictionary of English v.0.48:

Costermonger \Cos"ter*mon`ger\ (k?s"t?r-m?n`g?r), n. [See
   Costard.]
   An apple seller; a hawker of, or dealer in, any kind of fruit
   or vegetables; a fruiterer. [Written also costardmonger.]
   [1913 Webster]