befall

动词 befall:

1. become of; happen to
   同义词：bechance, betide
2. happen, occur, or be the case in the course of events or by chance (Santayana)
   同义词：happen, bechance

1. A great misfortune befell him.
   一场大难降临到他的头上。
2. We shall never leave you, whatever befalls.
   不管发生什麽事情，我们永远也不会离开你。

be.fall

v.（动词）
be.fell[-fμl.] be.fall.en[-fô.l…n] be.fall.ing,be.falls
v.intr.（不及物动词）
To come to pass; happen.
降临：发现；发生
v.tr.（及物动词）
To happen to.See Synonyms at happen
偶然发生参见 happen

来源：
Middle English bifallen
中古英语 bifallen
from Old English befeallan [to fall]
源自 古英语 befeallan [落下]