please, smiling, complacent
逌 centers on a relaxed, pleased state: smiling, being complacent, or expressing gentle satisfaction. The 'please' sense is an extension of that easygoing pleasantness.
逌 combines the movement radical 辶 with 卣, a type of ancient wine vessel. The exact historical development is uncertain, but the character may have originally expressed a leisurely or contented state associated with wine.
The movement radical 辶 suggests a relaxed stroll, while the inner 卣 looks like a wine vessel. Picture someone walking slowly with a contented smile after a pleasant drink.
For ユウ, imagine a smiling person saying 'you' in a pleased, drawn-out way: 'yooou' -> ユウ, matching the complacent mood.