Stay-stomach

I reckon that old fellow, your husband, aint brung in your breckkus yet ; so you must be mighty hungry by this time, and there’s no better stay-stomach in the worl than hard biled eggs.

Source: wiktionary

But there were others in the thirteenth century, quoted in the Summa Summarum of Sylvester Prieras, who said that a man might take electuaries, or ginger by way of stay-stomach, without impeding Communion.

Source: wiktionary