- [Arch] A molding, the section of which is the form of the letter S, with the convex part above; cyma reversa. See Illust. under Cyma.
- Hence, any similar figure used for any purpose.
Etymology: F. ogive augive, LL. augiva, of uncertain origin; cf.LL. ogis a support, prop. L. augere to increase, strengthen, Sp. auge highest point of power or fortune, apogee, Ar. auj, an astronomical term