spur Copy link Outline I. For horsesII. Fig.1. calcar2. incĭtāmentumIII. A projection • spur: I. For horses: calcar, āris, n.: to urge on a horse with s.s, calcaribus equum concitare, Liv. 2, 6: incendere, Hirt. B. G. 8, 48: stimulare, Val. Max.: to put s.s to a horse, subdere equo c., Curt. 7, 2: also (in fig. sense), c. uti, Cic. de Or. 3, 9, 36: adhibere, id. Br. 56, 204: calcar addere, Hor. Ep. 2, 1, 217: quasi c. adhibere, Cic. Att. 6, 1, 4. (Stimulus is a stick with an iron point: v. goad.) II. Fig.: an incitement: 1. calcar: esp. in sing.: cf. supr. 2. incĭtāmentum: stĭmŭlus: v. incentive. III. A projection: esp. from a range of mountains: expr. by prōmĭneo, ēmĭneo: v. to project.