It's a Greek word and it derives from the time when the Greece was top nation. I have a vision of a toga'd Greek lying in a hammock on a beach surrounded by servants and concubines, yet still unsatisfied with a never ending succession of fine dining and excesses of lifestyle. I went to Sams and bought Paul McCartney's latest CD Run Devil Run. The thrill I got was the same as when I bought his Beatles albums thirty years ago. We all have ways of getting a buzz.
Happiness is a state.
You don't get it from possessions, or stimulations, or even relations. Or anything external. You can sometimes get it from relationships. The best example I can give of happiness in life is the contentment given by children to their parents and grandparents. This is no short-lived hedonism.