“money”除了名词形式外还有形容词形式“moneyed”，表达的意思是“富裕的，有钱的”。所以，a moneyed family的意思就是“富裕的家庭”。

【例句】
He is born and raised in a moneyed family.
他在一个富裕的家庭出生并被抚养长大。

We know only too well that it is often among the less moneyed classes that the greatest amount of gambling takes place.
我们非常清楚，赌博最多的往往是那些不太富有的阶层。