A piece - The word is only found here; but is thought to be connected in etymology and in meaning with the “Gerah,” the smallest Hebrew coin, being the twentieth part of the shekel. The smallness of the sum asked for shows the poverty of the asker.
Related Commentaries of 1 Samuel 2:36
1 Samuel 2:36
36 And it shall come to pass, that every one that is left in thine house shall come and crouch to him for a piece of silver and a morsel of bread, and shall say, Putg me, I pray thee, into one of the priests' offices, that I may eat a piece of bread.