"salty, briny," 1510s, from Dutch brak "brackish," probably from Middle Dutch brak "worthless," a word also used in commercial trade and which also made its way into early Modern English.
Examples from the Web for brack
Historical Examples of brack
She was in turn succeeded by Mr. Brack Cabell the following year.
You seem to have made a particularly lively night of it at your rooms, Judge Brack.
It's only a matter of form you know—Judge Brack assured me of that.
And Brack had all sorts of arrangements to make—so Eilert read to me.
In order to hear a little of your liveliness at first hand, Judge Brack.