Webster's Revised Unabridged Dictionary · 1913

Restraint

Restraint , noun

[Old French restraincte, from restrainct, French restreint, past participle of restraindre, restrendre. See Restrain.]

1.
The act or process of restraining, or of holding back or hindering from motion or action, in any manner; hindrance of the will, or of any action, physical or mental.
No man was altogether above the restrains of law, and no man altogether below its protection. — Macaulay
2.
The state of being restrained.
3.
That which restrains, as a law, a prohibition, or the like; limitation; restriction.
For one restraint, lords of the world besides. — Milton