Impugn

Chamber's Twientieth Century Dictionary · 1908 · p. 52

im-pūn′, v.t. to oppose: to attack by words or arguments: to call in question.— adj. Impugn′able .— ns. Impugn′er ; Impugn′ment . [L. impugnāre — in , against, pugnāre , to fight.]