disclaim
/dɪsˈkleɪm/verb
with obj.
1- refuse to acknowledge; deny拒绝承认; 否认：
the school disclaimed any responsibility for his death.
学校拒绝对他的死亡负责。
1.1
- Law renounce a legal claim to (a property or title)【律】放弃（财产或所有权）。
词源
late Middle English (in legal contexts)： from Anglo-Norman French desclamer, from des- (expressing reversal) + clamer 'to claim' （see CLAIM）.