sui juris
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Sui Juris
[Latin, Of his or her own right.]
Possessing full social and Civil Rights; not under any legal disability, or the power of another, or guardianship. Having the capacity to manage one's own affairs; not under legal disability to act for one's self.
West's Encyclopedia of American Law, edition 2. Copyright 2008 The Gale Group, Inc. All rights reserved.
sui juris
‘subject to his own law’, an independent legal person.Collins Dictionary of Law © W.J. Stewart, 2006
SUI JURIS. One who has all the rights to which a freemen is entitled; one
who is not under the power of another, as a slave, a minor, and the like.
2. To make a valid contract, a person must, in general, be sui juris.
Every one of full age is presumed to be sui juris. Story on Ag. p. 10.
A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.