I.of ten years (post-Aug.): “bellum, of the Greeks before Troy,” Quint. 8, 4, 22; “also proelium,” Petr. 89, 2, 8: “obsidio (Veiorum),” Flor. 1, 12, 8: “equae,” ten years old, Plin. 8, 44, 69; cf.: “decenni major asinus,” Pall. Mart. 14, 1.—
II. Subst.: decennia , ium, n., = decennalia, a festival under the emperors, held every ten years, Treb. Gall. 5 fin.; cf.: decennalis, no. II.