emasculate            
verb [ T ] uk/ɪˈmæs.kjə.leɪt/ us/ɪˈmæs.kjə.leɪt/
 formal使衰弱;使效力减弱 
to reduce the effectiveness of something
  They were accused of trying to emasculate the report's recommendations. 他们被指责企图贬低报告的可取之处。 
  formal使缺少男子气;使(男人)柔弱 
to make a man feel less male by taking away his power and confidence
  A lot of men would feel emasculated if they stayed at home while their wives went out to work. 如果妻子出去工作而自己呆在家里,很多男人就会感到丧失了男子气概。 
  biology specialized阉割 
to remove the male parts of something