Literature Reference: 我昨金陵过，闻之为歔欷。——《杜秋娘诗》 Yesterday, as I passed through Jinling, I heard of it and sighed deeply. Source from 'Du Qiu Niang Shi'.
歔: Sighs and choked sobs. The meaning carries ambiguity; caution is advised when used in names.
欷:
Meaning: Xu xi signifies a deep sigh of sorrow or lament, expressing profound emotion.