beautiful
贇 centers on beauty, likely referring to an attractive or elegant appearance. The meaning is narrow and straightforward.
贇 is a rare character. The top component 斌 combines 文 (pattern, literature) and 武 (military), suggesting refined elegance. The bottom 貝 (shell, value) may reinforce the idea of something precious or beautiful. The exact historical development is uncertain.
The top 斌 suggests a balanced blend of literary and martial grace, while the bottom 貝 adds a sense of treasured beauty. Together they form a character that means beautiful.
For イン, imagine an inn (イン) decorated with beautiful treasures (貝) and elegant patterns (斌): inn -> イン, and the beautiful inn is 贇.
—