substruction

[ Lat.substructio, from sub struct us, pa. par. of substruo to build under: sub under, and struo =to build.] An underbuilding; a ma of building under another; a foundation. "To found habitation firmly, of 3913 sub-tăck, s . [Pref. sub- , and Eng. tack (q.v.).] An under-lease; a lease of a farm tenement, ., granted by the principal tenant or leaseholder. (Scotch.)