Webster's Revised Unabridged Dictionary · 1913

Placitum

Placitum , noun

[Late Latin See Placit.]

1.
A public court or assembly in the Middle Ages, over which the sovereign president when a consultation was held upon affairs of state. — Brande & C
2.
(Old Eng. Law) A court, or cause in court.
3.
(Law) A plea; a pleading; a judicial proceeding; a suit. — Burrill