octōgēnārĭus, a, um, adj. [octogeni],
I containing eighty (post-Aug.): exheredata ab octogenario patre, who was a man of eighty , was eighty years old , Plin. Ep. 6, 33, 2; Vulg. 2 Reg. 19, 35: fistula, eighty inches broad , Vitr. 8, 7.—
II Subst.: octōgē-nārĭus , ĭi, m., a commander of eighty soldiers , Inscr. Orell. 3628.