The Collaborative International Dictionary of English v.0.48:

Aged \A"ged\ ([=a]"j[e^]d), a.
   1. Old; having lived long; having lived almost to or beyond
      the usual time allotted to that species of being; as, an
      aged man; an aged oak.
      [1913 Webster]

   2. Belonging to old age. "Aged cramps." --Shak.
      [1913 Webster]

   3. ([=a]"j[e^]d or [=a]jd) Having a certain age; at the age
      of; having lived; as, a man aged forty years.
      [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Age \Age\, v. i. [imp. & p. p. Aged; p. pr. & vb. n. Aging.]
   To grow aged; to become old; to show marks of age; as, he
   grew fat as he aged.
   [1913 Webster]

         They live one hundred and thirty years, and never age
         for all that.                            --Holland.
   [1913 Webster]

         I am aging; that is, I have a whitish, or rather a
         light-colored, hair here and there.      --Landor.
   [1913 Webster]

WordNet (r) 3.0 (2006):

aged
    adj 1: advanced in years; (`aged' is pronounced as two
           syllables); "aged members of the society"; "elderly
           residents could remember the construction of the first
           skyscraper"; "senior citizen" [syn: aged, elderly,
           older, senior]
    2: at an advanced stage of erosion (pronounced as one syllable);
       "aged rocks"
    3: having attained a specific age; (`aged' is pronounced as one
       syllable); "aged ten"; "ten years of age" [syn: aged(a),
       of age(p)]
    4: of wines, fruit, cheeses; having reached a desired or final
       condition; (`aged' pronounced as one syllable); "mature well-
       aged cheeses" [syn: aged, ripened]
    5: (used of tobacco) aging as a preservative process (`aged' is
       pronounced as one syllable) [syn: aged, cured]
    n 1: people who are old collectively; "special arrangements were
         available for the aged" [syn: aged, elderly] [ant:
         young, youth]

Moby Thesaurus II by Grady Ward, 1.0:

93 Moby Thesaurus words for "aged":
   abiding, advanced, advanced in life, advanced in years, age-long,
   age-old, along in years, ancient, antediluvian, antique, chronic,
   constant, continuing, developed, diuturnal, doddering, durable,
   elderly, enduring, evergreen, full-blown, full-fledged, full-grown,
   fully developed, getting on, gray, gray with age, gray-haired,
   gray-headed, grey, grown old, hardy, hoar, hoary, immutable,
   in full bloom, intransient, inveterate, lasting, long-lasting,
   long-lived, long-standing, long-term, longeval, longevous,
   macrobiotic, mature, matured, mellow, mellowed, of long duration,
   of long standing, old, old as Methuselah, olden, patriarchal,
   pensioned off, perdurable, perduring, perennial, permanent,
   perpetual, persistent, persisting, remaining, retired, ripe,
   ripened, seasoned, sempervirent, senectuous, senescent, senile,
   senior, stable, staying, steadfast, superannuated, tempered,
   timeworn, tottery, tough, unfading, venerable, vital, white,
   white with age, white-bearded, white-crowned, white-haired,
   wrinkled, wrinkly, years old