bonanza /bə-nanˈzə or bəʊ- or bo-/

1. A rich mine or vein of precious ore (N American)
2. A large amount of (usu) silver
3. Any source of wealth or stroke of luck

Very prosperous

• Or.
• ora
• orach
• orache
• oraches
• oracies
• oracle
• oracled
• oracles
• oracling
• oracular
• oracularities
• oracularity
• oracularly
• oracularness
• oracularnesses
• oraculous
• oraculously
• oraculousness
• oraculousnesses
• oracy
• ora et labora
• oragious
• oral
• oral contraception