/ ɪmˈpiːtʃ; NAmE / verb [ vn ]
1.
impeach sb (for sth) ( of a court or other official body, especially in the US ) to charge an important public figure with a serious crime
2.
( formal ) to raise doubts about sth
SYN question :
to impeach sb's motives
► im·peach·ment noun [ U , C ]
••
WORD ORIGIN
late Middle English (also in the sense hinder, prevent ; earlier as empeche ): from Old French empecher impede, from late Latin impedicare catch, entangle (based on pedica a fetter, from pes , ped- foot). Compare with impede .