Definition of quadriennium utile in English:

quadriennium utile

Pronunciation /ˌkwɒdrɪɛnɪəm ˈ(j)uːtʌɪl/

noun

historical Scots Law
  • The four-year period between the ages of 21 and 25 during which a person may seek to revoke acts done during his or her minority.

    Abolished by the Age of Legal Capacity (Scotland) Act, 1991.

Origin

Late 17th century; earliest use found in James Dalrymple. From classical Latin quadriennium (in post-classical Latin also quadrennium) quadrennium + ūtile, neuter of ūtilis utile.