impeach (v.) 2
discredit, disparage, call into question
1H4 I.iii.74 [Blunt to King Henry, of Hotspur] or any way impeach / What then he said
MND II.i.214 [Demetrius to Helena] You do impeach your modesty too much
MV III.ii.278 [Salerio to Bassanio, of Shylock] He ... doth impeach the freedom of the state / If they deny him justice
MV III.iii.29 [Antonio to Solanio, of the course of law] if it be denied, / Will much impeach the justice of the state
R2 I.i.189 [Bolingbroke to King Richard] Shall I ... with pale beggar-fear impeach my height