Definition of improbation
1 archaic : disapproval
2 [Latin improbation-, improbatio] Scots law : an act by which falsehood and forgery are proved : an action brought for the purpose of having some instrument declared false or forged
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Origin and Etymology of improbation
Middle French, from Latin improbation-, improbatio disapprobation, from improbatus (past participle of improbare to disapprove, from in- 1in- + probare to examine, approve, prove) + -ion, -io -ion — more at prove
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