Literature Reference: 贞，正也。——《说文》
颖，禾末也。——《说文》 'Zhen' means upright and righteous, from 'Shuowen Jiezi'.
'Ying' refers to the tip of grain, symbolizing sharpness, from 'Shuowen Jiezi'.
贞: Loyalty and steadfastness. Often used in conjunction with unwavering devotion, it signifies remaining true to one's cherished principles with resolute determination.
颖: Wise and distinguished.
Meaning: Upright and wise, symbolizing integrity and outstanding talent.