Literature Reference: 曼，长也。秋，收成之季。——《说文解字》 Man means long and graceful, while Qiu signifies the season of harvest. Source from 'Shuowen Jiezi'.
曼:
Graceful and exquisitely beautiful. In names, it often signifies a person's physical attractiveness, poised demeanor, and elegant conduct.
秋: Autumn, the season of harvest. In names, it symbolizes bountiful reaping, fostering a life of peace, joy, prosperity, and flourishing abundance.
Meaning: Graceful and enduring, like the abundant and beautiful autumn season.