late 14c., from Old French averer "verify," from Vulgar Latin *adverare "make true, prove to be true," from Latin ad- "to" (see ad-) + verus "true" (see very). Related: Averred; averring.
实用例句
1. To aver is to allege in a pleading.
立证是在辩护中引例证明.
来自辞典例句
2. In spite of all you say, I still aver that his report is true.