Meaning:
Its source is an English expression meaning "The ocean."
Narrative:
This is the name of the ocean that lies between the western shores of the Old World and the eastern shores of the New. It is sometimes given to a child born at sea.
It probably derives from the name of the Atlas mountains in North Africa. That name originated with a Greek myth in which Zeus gives a rebellious Titan named Atlas the task of holding up the heavens. The mountains are his transformed body, straining under its titanic load.