what's the origan of the name"JACK"?

问题描述:

what's the origan of the name"JACK"?
everything about it will be okay!
esp.the deep meaning

Jack (name),originally a nickname for Jacob (Latin,French) and James (Middle English),from Hebrew "God has protected",[1]
Jack 是拉丁文 Jacob的昵称,也是中世纪英文里的 James,这个名字源自西伯来,在西伯来文里的意思是 "神会保护".具体参见圣经创始记.