Lewis & Short

aevum (archaic aevom), i, n.; but m., Plaut. Poen. 5, 4, 14; Lucr. 2, 561; 3, 603 [αἰών; cf. αἰές or αἰέν, ἀεί, ἀίδιος; Goth. aivs = time, aiv = ever, aiveins = everlasting; Germ. ewig, Ewigkeit; Eng. aye, ever].

  1. I. Lit.
    1. A. In gen., uninterrupted, never-ending time, eternity; per aevom, Lucr. 1, 634; 1, 950 al.
      Hence of the future: in aevum, for all time, Hor. C. 4, 14, 3; so Plin. 35, 2, 2, and Vulg. Eccli. 41, 16: nos peribimus in aevum, ib. Bar. 3, 3.
    2. B. Esp., in a more restricted sense of a definite time, period, lifetime, life, age: aevom agitare, Enn. ap. Gell. 12, 2, 3 (Ann. v. 308 Vahl.): in armis aevom agere, Pac. ap. Cic. Tusc. 2, 21, 49 (Trag. Rel. p. 110 Rib.); so, aevom degere, Lucr. 5, 1439: consumere, id. 5, 1430: meum si quis te percontabitur aevum, my age or time of life, Hor. Ep. 1, 20, 26: aevum omne et breve et fragile est, Plin. Pan. 78, 2: flos aevi, the bloom of life (cf. aetas, I.), Ov. M. 9, 435: integer aevi, Verg. A. 9, 255: primum aevum, Val. Fl. 7, 338.
      Also (like aetas, q. v. I.) for old age: aevo confectus, Verg. A. 11, 85: obsitus aevo, id. ib. 8, 307: annis aevoque soluti, Ov. M. 8, 712.
  2. II. Transf.
    1. A. Age or generation, Ov. P. 1, 3, 83: ter aevo functus (of Nestor), Hor. C. 2, 9, 13: ingenia nostri aevi, Vell. 2, 36: in nostro aevo, Plin. 2, 25, 23, § 92: nostro aevo, id. 2, 13, 10, § 57: simulacrum tot aevis incorruptum, id. 14, 1, 2, § 9.
      Hence,
    2. B. The men living in the same age (cf. aetas, II. C.): de quibus consensus aevi judicaverit, Plin. 14, 6, 8, § 72.
    3. C. In a wider sense, time, in gen.: vitiata dentibus aevi omnia, Ov. M. 15, 235: quae per tantum aevi occulta, Tac. A. 16, 1.