The free and voluntary act of a party himself, done without the suggestion or influence of another person, is said to be done of his mere motion , ex mcro motu, (q. v.) Brown. The phrase is used of an interference of the courts of law, who will, under some cir- cumstances, of their own motion, object to an irregularity in the proceedings , though no objection has been taken to the informality by the plaintiff or defendant in the suit. 3 Chit. Gen. Pr. 430.
Black’s Law Online Dictionary
