I.adj. ord. [for novenus, from novem], the ninth: “terra nona,” Cic. Rep. 6, 18, 18: “accedes opera agro nona Sabino,” Hor. S. 2, 7, 118.—
II. Subst.: nōna , ae, f.
A. (Sc. hora.) The ninth hour of the day, i. e. the third before sunset, at which hour business was ended at Rome: “post nonam venies,” Hor. Ep. 1, 7, 71; Mart. 4, 8, 5.—