From Middle English biggen, from Old Norse byggja. See boor and bound.

• big

bigg (third-person singular simple present biggs, present participle bigging, simple past and past participle bigged)

1. (transitive, obsolete, Scotland, Northumbria) To build.^[1]
   • 1817, Walter Scott, The Black Dwarf‎^[1], page 78:

     "Biggin' a dry stane dyke [...]"

   • 1912, Algernon Charles Swinburne, “The Worm of Spindlestonheugh”, in Posthumous Poems:

     And whiles she ran, and whiles she grat,
     In the warm sun and the cold,
     Till they came to the bonny castle
     Was bigged upon with gold.

Of Scandinavian origin.

• big

bigg (uncountable)

1. (obsolete) A kind of barley.^[1]

   The Bigg Market in Newcastle

bigg

1. Obsolete spelling of big