quinquennis, e, adj. id., of five years or five years old: filia, Plaut. Poen. prol. 85: Olympias, celebrated every fifth year, quinquennial, Ov. P. 4, 6, 5: vinum, Hor. S. 2, 8, 47: oleae, id. ib. 2, 2, 57: juvenis, Col. 7, 3, 6.

—Plur. as subst.: quinquennia, ōrum, n., for quinquennālia, ium, games celebrated every fifth year, Stat. S. 5, 3, 113.