droop

verb
1
to bend, hang or move downwards, especially because of being weak or tired
آویزان شدن, خم شدن, پژمردن
2
to become sad or depressed
افسرده شدن, غمگین شدن, خمودگی پیدا کردن, افسرده گردیدن
Our spirits drooped when we heard the news.
noun
1
a curve or bend downwards, often caused by being weak or tired
افتادگی, خمیدگی, خم