lath vs sheth

lath

noun
  • A thin, narrow strip, fastened to the rafters, studs, or floor beams of a building, for the purpose of supporting a covering of tiles, plastering, etc. 

  • Microscopic, needle-like crystals, usually of plagioclase feldspar, in a glassy groundmass 

verb
  • to cover or line with laths 

sheth

noun
  • The bar on a plough which projects downward beneath the beam to connect to the sole. 

How often have the words lath and sheth occurred in a corpus of books? (source: Google Ngram Viewer )