久: Long-lasting, enduring. In names, it conveys the meaning of remaining true to one's original aspirations and persevering, making it an auspicious character for names.
库: The characters "库仑" and "仓库" in names often symbolize abundance, prosperity, ample resources, and a state of being well-supplied.
Meaning: 'Jiu' symbolizes longevity and stability, while 'Ku' represents abundance and accumulation.