Answer:
The term fret refers to an ornamental design element that consists of interlaced, repeating geometric patterns. Frets are often carved or inlaid into the surface of furniture, such as chair backs, cabinet doors, or table legs. They are popular in various styles of furniture, including Asian, Art Deco, and Neoclassical designs. Frets can add decorative interest and visual texture to furniture pieces. Interlaced ornamental work, perforated or cut in low relief on a solid ground, in geometric patterns. The tracery of glazed doors and windows. Also fretwork, fretting, or latticework.