Literature Reference: 良姻在嘉偶，顷克为单独。—— 《和梦游春诗一百韵》 A good marriage lies in a suitable partner, while being alone is transient. Source from 'He Meng You Chun Shi Yi Bai Yun'.
嘉: Praise, auspiciousness, celebration, and happiness.
偶: Paired and matched, in contrast to the "odd."
Meaning: Jiā ǒu signifies a harmonious and suitable partner, symbolizing a blissful and fulfilling marriage.