Plethora: an abundance, a superabundance; an excess or oversupply of something 

The United States has a plethora of natural resources.  And, it’s a good thing, too.  According to Peter Zeihan in his book, The End of the World is Just the Beginning, America, due to its plethora of resources is gonna be okay.  Everyone else should brace for a wild ride.  

Plethora comes from the Greek word plethein meaning “to be full.”