aged

Etymology

adj

1. Old.
2. (chiefly non-US) Having the age of.
   Aged 18, he had no idea what to do with his life.
   John Mathews, aged about 18, stood at the bar with his hands in his pockets, alike indifferent to a verdict of acquittal or guilty. October 6 1865, “Court of Special Sessions”, in The New York Times
   Forty-six percent of drivers aged 18 to 24 said they would choose Internet access over owning a car, according to the research firm Gartner. March 22 2012, Amy Chozick, “As Young Lose Interest in Cars, G.M. Turns to MTV for Help”, in The New York Times
3. Having undergone the improving effects of time; matured.

noun

1. Old people, collectively.

verb

1. simple past and past participle of age