I.keenness of perception, acuteness of the senses, sagacity.
I. Lit.
A. Keenness of scent in dogs: “canum tam incredibilis ad investigandum sagacitas narium,” Cic. N. D. 2, 63, 158; so, “canum,” Plin. 9, 30, 48, § 92.—*
2. Transf., of hunters: “ut domitas feras mentita sagacitate colligerent,” Plin. Pan. 81, 3.—*
B. Keenness, acuteness of the other senses: “sensuum,” Sen. Ep. 95, 58.—
II. Trop., intellectual keenness of perception, acuteness, shrewdness, sagacity (good prose; “syn.: sollertia, acumen): utrum admonitus ac tentatus, an, quā est ipse sagacitate in his rebus, sine duce ullo, sine indice, pervenerit ad hanc improbitatem, nescio,” Cic. Verr. 2, 1, 41, § 105: “tuam tantam fuisse sagacitatem,” id. ib. 2, 4, 12, § “29: erat eā sagacitate, ut decipi non posset,” Nep. Alc. 5, 2: “consilii,” Val. Max. 7, 3, 3: “Hipparchi sagacitate compertum est, lunae defectum, etc.,” Plin. 2, 13, 10, § 57.