1911 Encyclopædia Britannica/Cavetto

CAVETTO (Ital. diminutive of cavo, hollow), in architecture, the term given to a hollow concave moulding sometimes employed in the place of the cymatium of a cornice, as in that of the Doric order of the theatre of Marcellus. It forms the crowning feature of the Egyptian temples, and took the place of the cymatium in many of the Etruscan temples.