Ultimately from Latin pecūnia (“money”).
pecunious (comparative more pecunious, superlative most pecunious)
- With money, wealthy; financially independent.
1986, Stella Lowder, Inside Third World Cities, ISBN 9780709916475, page 182:
- Initially these outlets catered for the more pecunious element in the population and sold imported and processed goods, ...
- (figuratively) rich (of quality, etc.)