Main Entry: im·pugn

Pronunciation: \im-ˈpyün\

Function: transitive verb

Etymology: Middle English, from Anglo-French empugner, from Latin inpugnare, from in- + pugnare to fight — more at pungent

Date: 14th century

1 : to assail by words or arguments : oppose or attack as false or lacking integrity <impugned the defendant's character>
2 obsolete a : assail b : resist

— im·pugn·able \-ˈpyü-nə-bəl\ adjective

— im·pugn·er \-nər\ noun