Functus Officio

Definition of Functus Officio

Lat. A task performed. Board of School Trustees of Washington City Administrative Unit v. Benner, 222 N.C. 566, 24 S.E.2d 259, 263. Having fulfilled the function, discharged the office, or accomplished the purpose, and therefore of no further force or authority. Applied to an officer whose term has expired and who has consequently no further official authority; and also to an instrument, power, agency, etc., which has fulfilled the purpose of its creation, and is therefore of no further virtue or effect. Holmes v. Birmingham Transit Co., 270 Ala. 215, 116 So.2d 912, 919.

That's the definition of Functus Officio in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.