forpet

noun1

1. •
   (Scotland, old-fashioned) A quarter (fourth part) used especially as a unit of mass or capacity.

   • The forpet, or one-fourth part of a peck, contains 3 Scotch standard pints and one choppin, is 7¾ inches diameter at the bottom, 6¾ inches at the mouth, and 9⅛ inches deep. — 1816