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ad arbitrium

[ahd ahr-bi-tree-oo m; English ad ahr-bi-tree-uh m] /ɑd ɑrˈbɪ triˌʊm; English æd ɑrˈbɪ tri əm/
adverb, Latin.
1.
at pleasure; at will.
Origin
literally, at (one's) control or decision
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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