The Collaborative International Dictionary
Non obstante \Non` ob*stan"te\ (n[o^]n` [o^]b*st[a^]n"t[-e]).
Notwithstanding; in opposition to, or in spite of, what has been stated, or is to be stated or admitted.
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(Law) A clause in old English statutes and letters patent, importing a license from the crown to do a thing notwithstanding any statute to the contrary. This dispensing power was abolished by the Bill of Rights.
In this very reign [Henry III.] the practice of dispensing with statutes by a non obstante was introduced.
--Hallam.Non obstante veredicto [LL.] (Law), a judgment sometimes entered by order of the court, for the plaintiff, notwithstanding a verdict for the defendant.
--Stephen.
Wiktionary
n. (context legal English) A clause in old English statutes and letters patent, designating a licence from the crown to do a thing notwithstanding any laws to the contrary.