What does "affirmance" mean?

The act of affirming, affirmation

Affirmance

Common synonyms include: acceptance, affirmation, allegation, announcement, annunciation, approbation.

noun

noun ·Rare ·Advanced level

Noun

1
The act of affirming, affirmation uncountable
2
A decision upholding the decision of a lower court or agency countable
"Of these 248 appeals the Appellate Division reviewed 4, rendering 3 affirmances and 1 reversal, 75% affirmances, 25% reversals."

"Of these 248 appeals the Appellate Division reviewed 4, rendering 3 affirmances and 1 reversal, 75% affirmances, 25% reversals."

Either affirm + -ance or from Old French afermance