disown

动词 disown:

1. prevent deliberately (as by making a will) from inheriting
   同义词：disinherit

1. Tom disowned the letter.
   汤姆否认这封信是他写的。
2. If you behave like that in front of my friends again, I'll disown you!
   你要是再当着我朋友的面那样做，我就和你一刀两断！

dis.own

v.tr.（及物动词）
dis.owned,dis.own.ing,dis.owns
To refuse to acknowledge or accept as one`s own; repudiate.
否认…是自己的；否认：拒绝承认或接受自己；否认