Main Entry: lath

Pronunciation: \ˈlath also ˈlath\

Function: noun

Inflected Form(s): plural laths or lath

Etymology: Middle English, from Old English *læthth-; akin to Old High German latta lath, Welsh llath yard

Date: 13th century

1 : a thin narrow strip of wood nailed to rafters, joists, or studding as a groundwork for slates, tiles, or plaster
2 : a building material in sheets used as a base for plaster
3 : a quantity of laths

— lath transitive verb