lath 
(lăth)
(lăth)n. pl. laths (lăthz, lăths)
1.
a. A thin strip of wood or metal, usually nailed in rows to framing supports as a substructure for plaster, shingles, slates, or tiles.
b. A building material, such as a sheet of metal mesh, used for similar purposes.
2.
a. A quantity of laths; lathing.
b. Work made with or from lath.
tr.v. lathed, lath·ing, laths
To build, cover, or line with laths.
[Middle English latthe, probably alteration (influenced by Welsh llath, rod) of Old English lætt.]