Affirm

v. confirm; claim; state to be true

In law, to affirm is:To assert or promise under penalty of perjury (see affirmation).In an appeal, to uphold the judgement of the lower court.In a judgement when the jury decides the fate of the convicted person.To confirm
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Verb
1. establish or strengthen as with new evidence or facts; "his story confirmed my doubts"; "The evidence supports the defendant"
(synonym) confirm, corroborate, sustain, substantiate, support
(antonym) negate, contradict
(hyponym) back, back up
(derivation) affirmation
2. to declare or affirm solemnly and formally as true; "Before God I swear I am innocent"
(synonym) verify, assert, avow, aver, swan, swear
(hypernym) declare
(hyponym) hold
(derivation) affirmation, assertion, statement
3. say yes to
(hyponym) claim
(derivation) affirmation, assertion, statement

(v. t.)
To declare, as a fact, solemnly, under judicial sanction. See Affirmation, 4.
  

(v. t.)
To assert positively; to tell with confidence; to aver; to maintain as true; -- opposed to deny.
  

(v. t.)
to assert or confirm, as a judgment, decree, or order, brought before an appellate court for review.
  

(v. i.)
To make a solemn declaration, before an authorized magistrate or tribunal, under the penalties of perjury; to testify by affirmation.
  

(v. i.)
To declare or assert positively.
  

AFFIRM, AFFIRMED - The act of an appellate court upholding a decision of a trial court or a lower appellate court is called affirming the decision.In the practice of the appellate courts, the decree or order is declared valid and will stand as rendered in the lower court.