[im.peach] vt [ME empechen, fr. MF empeechier to hinder, fr. LL impedicare to fetter, fr. L in- + pedica fetter, fr. ped-, pes foot--more at foot] (14c) 1 a: to bring an accusation against b: to charge with a crime or misdemeanor; specif: to charge (a public official) before a competent tribunal with misconduct in office
2: to cast doubt on; esp: to challenge the credibility or validity of "~ the testimony of a witness"
3: to remove from office esp. for misconduct -- im.peach.able adj -- im.peach.ment n
[2]impeach n (1590) obs: charge, impeachment