Signifies those periods in the lives of persons of both sexes which enable them to do certain acts which, before they had arrived at those periods, they were prohibited from doing. The length of time during which a person has lived or a thing has existed. In the old books, “age” is commonly used to signify “full age;” that is, the age of twenty one years. Litt.
AGE
TheLaw.com Law Dictionary & Black's Law Dictionary 2nd Ed.