aver
aver \*-'v*r\ vt or averred; or aver.ring [ME averren, fr. MF averer, fr. ML adverare to confirm as aut]hentic, fr. L ad- + verus true - more at VERY 1a: to verify or prove to be true in pleading a cause 1b: to allege or assert in pleading 2: to declare positively