To annul again or to reverse an annulment; to invalidate or nullify something previously nullified.
From dis- (reversal) + annul (to nullify). Annul comes from Latin annullare, from ad- (to) + nullus (none, void).
This legal term appears in rare cases where an annulment itself needs to be reversed—making the marriage valid again—which happened in some historical church cases where annulments were declared invalid.
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