Definition of Concilium

Lat. A council. Also argument in a cause or the sitting of the court to hear argument; a day allowed to a defendant to present his argument; an imparlance.
—Concilium ordinarium. In Anglo-Norman times. An executive and residuary judicial committee of the Aula Regis, (q. v.)
—Concilium regis. An ancient English tribunal, existing during the reigns of Edward I. and Edward II., to which was referred cases of extraordinary difficulty. Co.. Litt. 304.