nogging

from WordNet (r) 3.0 (2006)

nogging
    n 1: rough brick masonry used to fill in the gaps in a wooden
         frame

from The Collaborative International Dictionary of English v.0.48

Nogging \Nog"ging\, n. [From {Nog}, v. t.]
   Rough brick masonry used to fill in the interstices of a
   wooden frame, in building.
   [1913 Webster]