utensils, as knives, forks, and spoons, used at the table for serving and eating food.
dishes or containers for the table that are more or less flat, as plates and saucers (distinguished from hollowware).
Origin of flatware
First recorded in 1850–55; flat1
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for flatwares
noun US and Canadian
any relatively flat tableware such as plates, saucers, etcCompare hollowware
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for flatwares
1851, from flat (adj.) + ware (n.). Originally as distinguished from hollow ware; U.S. sense of "domestic cutlery" recorded by 1895.
Online Etymology Dictionary, © 2010 Douglas Harper