- beyond the legal power or authority of a corporation, corporate officer, etc. (opposed to intra vires).
Origin of ultra vires
First recorded in 1785–95, ultra vires is from the Latin word ultrā vīrēs literally, beyond strength
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- (predicative) law beyond the legal power or authority of a person, corporation, agent, etc
Latin, literally: beyond strength
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
Word Origin and History for ultra vires
Latin, literally "beyond powers," from vires "strength, force, vigor, power," plural of vis.
Online Etymology Dictionary, © 2010 Douglas Harper