Meaning

noun the state of being rich and affluent; having a plentiful supply of material goods and money

noun the quality of profuse abundance

noun an abundance of material possessions and resources

originInherited from Middle English welth, welthe (“happiness, prosperity”), from Old English *welþ, *welþu, from Proto-West Germanic *waliþu (“wealth”). Alternatively, possibly an alteration (due to similar words in -th: compare helth (“health”), derth (“dearth”)) of wele (“wealth, well-being, weal”), from Old English wela (“wealth, prosperity”), from Proto-Germanic *walô (“well-being, prosperity”),…

Etymology from Wiktionary, CC BY-SA 3.0