Literature Reference: 新愁旧恨多难说，半在眉间半在胸。—— 《忆山寄僧》 雍陶 New sorrows and old regrets are hard to express, half on the brow, half in the chest. Source from 'Yi Shan Ji Seng' by Yong Tao.
旧: Outdated, in contrast to "new." A surname. The meaning of the character is ambiguous, so it should be used cautiously in given names.
恨: "Resentment; enmity. The term carries ambiguous connotations; use with caution."
Meaning: Old regrets refer to the lingering pain or sorrow from the past, expressing deep emotions and memories.