na-adjective, noun
Describes individuals, families, or nations possessing abundant financial resources. Often used in formal or written contexts.
彼は富裕な家庭に生まれた。
He was born into a wealthy family.
富裕層向けのサービスが増えている。
Services for the affluent are increasing.
Compound of 富 (wealth) and 裕 (abundant). The exact historical derivation is uncertain, but the combination naturally conveys 'abundant wealth'.