The Collaborative International Dictionary of English v.0.48:

Big \Big\, Bigg \Bigg\, v. t. [OE. biggen, fr. Icel. byggja to
   inhabit, to build, b?a (neut.) to dwell (active) to make
   ready. See Boor, and Bound.]
   To build. [Scot. & North of Eng. Dial.] --Sir W. Scott.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Big \Big\, Bigg \Bigg\, n. [OE. bif, bigge; akin to Icel. bygg,
   Dan. byg, Sw. bjugg.] (Bot.)
   Barley, especially the hardy four-rowed kind.
   [1913 Webster]

         "Bear interchanges in local use, now with barley, now
         with bigg."                              --New English
                                                  Dict.
   [1913 Webster] Big

The Collaborative International Dictionary of English v.0.48:

Bigg \Bigg\, n. & v.
   See Big, n. & v.
   [1913 Webster]