Obs. rare1. (See quot.)

1

  Perh. for rest-beer, from the time it was allowed to lie before being used.

2

a. 1654.  Selden, Table-T., Parlt. (Arb.), 81. Just as in brewing of Wrest-Beer, there’s a great deal of business in grinding the Mault;… then it must be mash’d,… then they keep a huge quarter when they carry it into the Cellar, and a twelve month after ’tis delicate fine Beer.

3