dictum (n.) Look up dictum at Dictionary.com
1660s, from Latin dictum "thing said (a saying, bon-mot, prophecy, etc.), an order, 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 which is not the formal resolution of a case.