Ôr'tĭve, a.
a. [Lat. ortivus, from oriri, ortus, to rise; It. & Sp. ortivo, Fr. ortif, f. ortive.] Of, or relating to, the time or act of rising, as of a star; rising; eastern; as, the ortive amplitude of a planet.
a. [Lat. ortivus, from oriri, ortus, to rise; It. & Sp. ortivo, Fr. ortif, f. ortive.] Of, or relating to, the time or act of rising, as of a star; rising; eastern; as, the ortive amplitude of a planet.