impugn
verb
[ ɪmˈpjuːn ]
• dispute the truth, validity, or honesty of (a statement or motive); call into question.
• "the father does not impugn her capacity as a good mother"
Origin:
late Middle English (also in the sense ‘assault, attack physically’): from Latin impugnare ‘assail’, from in- ‘towards’ + pugnare ‘fight’.
