I.of or belonging to spies or scouts: “navigia,” spy-boats, vessels of observation, Caes. B. G. 4, 26; “also called speculatoriae naves,” Liv. 30, 10, 14; 35, 26, 9; 36, 42, 8; and caliga, worn by spies or scouts, Suet. Calig. 52.— Hence, subst.: spĕcŭlātōrĭa , ae, f.
A. (Sc. navis.) A spy-boat, Liv. 22, 19, 5; 22, 36, 42.—
B. (Sc. caliga.) A boot worn by spies or scouts, Tert. Cor. Mil. 1.