sui juris

[ soo-ahy -joor-is, soo-ee ]
/ ˈsu aɪ ˈdʒʊər ɪs, ˈsu i /

adjective Law.

capable of managing one's affairs or assuming legal responsibility.

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Origin of sui juris

First recorded in 1605–15, sui juris is from Latin suī jūris “of one's own right”
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for sui juris

sui juris
/ (ˈsuːaɪ ˈdʒʊərɪs) /

adjective

(usually postpositive) law of full age and not under disability; legally competent to manage one's own affairs; independent

Word Origin for sui juris

C17: from Latin, literally: of one's own right
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012