어시호 於是乎

http://ko.w3dictionary.org/index.php?q=%EC%96%B4%EC%8B%9C%ED%98%B8

어시호 [於是乎]1 [이에 있어서] hereupon;
 thereupon;
 at this (point);
 with regard to this.
2 ＝이제야.