Nulle regle sans faute. There is no rule without a fault.

Nulli enim res sua servit jure servitutis. No one can have a servitude over his own property. Dig. 8, 2, 26; 17 Mass. 443; 2 Bouv. Inst. n. 1600.

Nullum exemplum est idem omnibus. No example is the same for all purposes.

Nullum iniquum praesumendum in jure. Nothing unjust is presumed in law. 4 Co. 72.

Nullum simile¹ est idem. No simile is the same. Co. Litt. 3.

Nullus commodum capere potest de injuriÉ suÉ propriÉ. No one shall take advantage of his own wrong. Co. Litt. 148.

Nullus recedat e curiÉ concellariÉ sine remedio. No one ought to depart out of the court of chancery without a remedy.

Nunquam fictio sine lege. There is no fiction without law.

Nuptias non concubitas, sed consensus² facit. Cohabitation does not make the marriage, it is the consent of the parties. Dig 50, 17, 30; 1 Bouv. Inst. n. 239; Co. Litt. 33.

Obedientia est legis essentia. Obedience³ is the essence of the law. 11 Co. 100.

Obtemperandum est consuetudini rationabili tanquam legi. A reasonable custom is to be obeyed like law. 4 Co. 38.

Officers may not examine the judicial⁴ acts of the court.

Officia magistratus non debent esse venalia. The offices of magistrates⁵ ought not to be sold. Co. Litt. 234.

Officia judicialia non concedantur antequam vacent. Judicial offices ought not to be granted before they are vacant. 11 Co. 4.

Officit conatus si effectus sequatur. The attempt becomes of consequence, if the effect follows.

Officium nemini debet esse damnosum. An office ought to be injurious to no one.

Omissio eorum quae tacite insunt nihil operatur. The omission⁶ of those things which are silently expressed is of no consequence.

Omne actum ab intentione agentis est judicandum. Every act is to be estimated by the intention of the doer.