noun
lumber
LUM-bur/ˈlʌmbər/
Wood cut and prepared for building or carpentry.
The lumber lies in neatly stacked boards and squared beams.
Etymology
Before it meant building timber, lumber meant disused furniture or heavy, useless objects. Its origin is uncertain; a proposed link to moving clumsily rests on the idea that such objects are awkward to move.
In context
After sawing and edging, lumber still retains a high level of natural moisture, sometimes nearly half its weight. If left untreated, the wood would easily warp, crack, or deform during use.