Simplify the following text for a Grade 5 native English-speaking person.
Original: The name comes from the Greek Ï Î Î '' Î Î Î Ï ( pÃ lagos ) , which might be roughly translated as `` sea '' but is more accurately translated as `` open sea . ''
Simplified: The word pelagic comes from the Greek Ï Î Î '' Î Î Î Ï or pÃ lagos , which means `` open sea . ''