名詞 godsend:

1. a sudden happening that brings good fortune (as a sudden opportunity to make money)
   同義詞：boom, bonanza, gold rush, gravy, manna from heaven, windfall, bunce

1. The rent was due, so your cheque came as an absolute godsend!
   租金已到期，你的支票來到真是喜從天降！

god.send

n.（名詞）
Something wanted or needed that comes or happens unexpectedly.
飛來鴻運(yùn)，意外得來之物：想要或需要的東西意外的到來或發(fā)生

來源：
Alteration of Middle English goddes sand [God`s message]
中古英語 goddes sand的變化 [上帝的音信]
goddes [genitive of] God [God] * see god
goddes [] God的所有格 [上帝] *參見 god
sand [message] from Old English * see sent-
sand [音信，消息] 源自 古英語 *參見 sent-