nōnāgēnārĭus
nōnāgēnārĭus, a, um, adj. nonageni, that contains or consists of ninety. In gen.: nonagenarius motus stellae Martis, ninety degrees distant from the sun, Plin. 2, 15, 12, § 60: fistula, made of a sheet of lead ninety inches wide, Front. Aquaed. 60.— In partic., as subst.: nōnā-gēnārĭus, i, m., a commander of ninety men, Inscr. Orell. 3628; cf. Veg. Mil. 2, 8.— Ninety years old, Vulg. Gen. 17, 17.