Literature Reference: 裕者，丰也；恒者，久也。—— 《说文解字》 'Yu' means abundance; 'Heng' means permanence. Source from 'Shuowen Jiezi'.
裕: Prosperous and thriving, often implying great wealth, abundance, and affluence in names.
恒: Eternity, unwavering perseverance.
Meaning: Abundance and permanence, symbolizing prosperity and eternity.