Arch. [It. cavetto, dim. of cavo, f. L. cav-us hollow: see CAVE.] ‘A hollowed moulding, whose profile is the quadrant of a circle. It is principally used in cornices’ (Gwilt, Encycl. Archit.).
1677. Moxon, Mech. Exerc. (1703), 268. We will describe a Cavetto.
1816. J. Smith, Panorama Sci. & Art, I. 174. The bedmould should consist of an ovolo, fillet, and cavetto.
1876. Gwilt, Encycl. Archit., 805–6. The cavetto, mouth, or hollow … is chiefly used as a crowning moulding…. By workmen it is frequently called a casement.
