octāvus
a, um, adj.
I.
the eighth: octava pars, Cic. Att. 15, 26, 4: legio, Caes. B. G. 2, 23: marmor, Mart. 9, 65, 4.—
II.
Subst.: octāva, ae, f.
A.
(Sc. hora.) The eighth hour of the day, Mart. 4, 8, 5; Juv. 1, 49.—
B.
(Sc. pars.) The eighth part, as a tax, Cod. Just. 4, 65, 7; Cod. Th. 4, 12, 6; Ulp. Fragm. 6, 12 (cf. octavarius).—
III.
Adv.: octāvum, for the eighth time, Liv. 6, 36, 7.