Word Study
ultra vires
CIDE DICTIONARY
ultra vires, [Law Latin, from L. prep. ultra beyond + vires, pl. of. vis strength.].
Beyond power; transcending authority; -- a phrase used frequently in relation to acts or enactments by corporations in excess of their chartered or statutory rights. [1913 Webster]
OXFORD DICTIONARY
ultra vires, adv. & predic.adj. beyond one's legal power or authority.
Etymology
L
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