Obs. rare. [prob. corruption of bracket BRAGGET, with assimilation of the last syllable to WORT2.] Used by Harrison to denote a portion of wort reserved from a former brewing, which, spiced and sweetened, was added to beer to promote fermentation and improve the flavor.
1577. Harrison, England, 169. This she reserveth by itself unto further use calling it Brackwoort or Charwoort She addeth to hir brackwoort or charwoort half an ounce of arras.