1 riches; abundant possessions; opulence.
2 the state of being rich.
3 (foll. by of) an abundance or profusion (a wealth of new material).
4 archaic welfare or prosperity.
Phrases and idioms:
wealth tax a tax on personal capital.
Etymology: ME welthe, f. WELL(1) or WEAL(2) + -TH(2), after health
Useful english dictionary. 2012.