Quadriennium utile

QUADRIENNIUM UTILE, Scotch law. The four years of a minor between his age of twenty-one and twenty-five years, are so called.
     2. During this period he is permitted to impeach contracts made against his interest previous to his arriving at the age of twenty-one years. Ersk. Prin. B. 1, t. 7, n. 19; 1 Bell's Com. 135, 5th ed.; Ersk. Inst. B. 1, t. 7, s. 35.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.