Scantling is an alteration of Middle English scantilon ('a measuring gauge'), from Old North French escantillon ('a sample, measure'), influenced by scant; later associated with 'a small dimension or timber'. The historical chain includes Old French escantillon. Older glosses in the chain include "a measuring gauge", "a sample, measure", and "a small dimension or timber", which help explain the semantic range of the modern word. Morphologically, scantling is best read as borrowing, yielding an English noun shaped by both form history and later usage. In current English it functions as a noun, with the sense "a small beam or timber, or its prescribed dimensions in construction". related forms include scant and scantily. The result is an English noun whose etymology preserves the older forms while supporting the word's specialized modern meaning.