/tray"seuh ree/ , n. , pl. traceries .
1. ornamental work consisting of ramified ribs, bars, or the like, as in the upper part of a Gothic window, in panels, screens, etc.
2. any delicate, interlacing work of lines, threads, etc., as in carving or embroidery; network.
[ 1425-75; late ME; see TRACE 1 , -ERY ]