dictum (n.)

"positive statement or assertion," often a mere saying but with implied authority, 1660s, from Latin dictum "thing said (a saying, bon-mot, prophecy, etc.), an order, a command," neuter of dictus, past participle of dicere "to say, speak" (from PIE root *deik- "to show," also "pronounce solemnly"). In legal use, a judge's expression of opinion without argument, which is not the formal resolution of a case or determination of the court.