MEDC, it is a term used which stands for a More Economically Developed Country.
Etymology is the study of a word and its developed meaning.
It comes from the Latin word 'mittere, meaning to send. This developed into meaning 'something that is capable of being thrown' or 'a weapon that can be thrown' and later as a 'self propelled rocket or bomb'
Wealth means to be rich or a treasure
The word you are looking for is "lush."
Rich
Affluent
Pecunious
rich
Nation
I think it is RICH.
Rich
Riche....meaning the same as rich in English.