rue
verb (old-fashioned or formal)- rue something
to feel bad about something that happened or something that you did because it had bad results synonym regret对…感到懊恼;懊悔 Word OriginOld English hrēow ‘repentance’, hrēowan ‘affect with contrition’, of Germanic origin; related to Dutch rouw ‘mourning’ and German Reue ‘remorse’.