Celebrate Epiphany. January 6, which is 12 days after Christmas in the Gregorian calendar, marks not only the end of the Christmas holidays but also the start of the Carnival season, which climaxes with Mardi Gras.
Noun. 1. prosperity-an economic state of growth with rising profits and full employment. economic condition-the condition of the economy.
In economics, economic growth or economic growth theory typically refers to growth of potential output, i.e., production at  full employment . As an area of study, economic growth is generally distinguished from development economics.