淯: The river, also known as Baihe, is a word of rare usage. Caution is advised when considering it for a name.
诚: Integrity and Simplicity, embodying honesty. When used in personal names, it often signifies a person's genuine sincerity, trustworthiness, and the commendable quality of keeping one's word without fail.
Meaning: The character 'Yu' signifies a river name, symbolizing clarity and flow; 'Cheng' represents sincerity and honesty, embodying noble character and integrity.