usurpation

The illegal encroachment or assumption of the use of authority, power, or property properly belonging to another; the interruption or disturbance of an individual in his or her right or possession.

The term usurpation is also used in reference to the unlawful assumption or seizure of sovereign power, in derogation of the constitution and rights of the proper ruler.

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See also: arrogation, assumption, distress, infringement

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USURPATION, torts. The unlawful assumption of the use of property which belongs to another; an interruption or the disturbing a man in his right and possession. Toml. Law Dict. h.t.
     2. According to Lord Coke, there are two kinds of usurpation. 1. When a stranger, without right, presents to a church, and his clerk is admitted; and, 2. When a subject uses a franchise of the king without lawful authority. Co. Litt. 277 b.

USURPATION, government. The tyrannical assumption of the government by force contrary to and in violation of the constitution of the country.