archivolt

(a) The architectural member surrounding the curved opening of an arch, corresponding to the architrave in the case of a square opening. (b) More commonly, the molding or other ornaments with which the wall face of the voussoirs of an arch is charged.

Source: Webster's Revised Unabridged Dictionary (1913), United States public domain. See methodology for full licensing detail. Word validity for game play may differ from any official game dictionary.