A dentil (from Lat. dens, a tooth[1]) is a small block used as a repeating ornament in the bedmould of a cornice.[2] Dentils are found in ancient Greek and Roman architecture, and also in later styles such as Neoclassical, Federal, Georgian Revival, Greek Revival, Renaissance Revival, Second Empire, and Beaux-Arts architecture.[3] Dentillation refers to use of a course of dentils.