tracery

[ trey-suh-ree ]

/ ˈtreɪ sə ri /

ornamental work consisting of ramified ribs, bars, or the like, as in the upper part of a Gothic window, in panels, screens, etc.

any delicate, interlacing work of lines, threads, etc., as in carving or embroidery; network.

Origin of tracery

late Middle English word dating back to 1425–75; see origin at trace¹, -ery

The tracery of a rose window over the door of the North aisle, is gone, and perhaps it is difficult to decide what it meant.

Guernsey Pictorial Directory and Stranger's Guide |Thomas Bellamy
The arches of the windows in the aisles are Early Decorated, the tracery is modern.

The Cathedrals of Great Britain |P. H. Ditchfield
The tracery of the windows is unusual in design, and is similar to that in a window of the chapel at Merton College, Oxford.

Bell's Cathedrals: The Cathedral Church of Gloucester [2nd ed.] |H. J. L. J. Mass
Cusp—an ornament used in the tracery of windows, screens, etc., to form foliation.

Scottish Cathedrals and Abbeys |Dugald Butler and Herbert Story

From others, as at Saint German, the tracery has been cut away altogether.

Sketches of Travel in Normandy and Maine |Edward A. Freeman

tracery

/ (ˈtreɪsərɪ) /

a pattern of interlacing ribs, esp as used in the upper part of a Gothic window, etc

any fine pattern resembling this

traceried, adjective