Dentil moulding refers to a decorative moulding that consists of a simple repetition of closely spaced, rectangular blocks. Dentil is derived from the Latin word dens, meaning teeth. This moulding is generally used below the cornice of the roof line, or along a fireplace mantel. It is a popular ornamentation in classical Greek and Roman architecture, Beaux Arts, Federal, Georgian Revival, Colonial Revival, Greek Revival, Neoclassicism, Renaissance Revival, and Second Empire.