This rare kanji has no clear standalone meaning. Treat its meaning as uncertain.
The exact historical development of 尦 is uncertain. It visually contains 勺 inside a structure resembling 儿 and ハ, but the original meaning and component relationships are unclear.
The shape suggests a bent or leaning figure (儿) with something inside (勺), but without a clear meaning, it is best remembered as a rare kanji with an uncertain sense.
For リョウ, imagine a rare, uncertain kanji named Ryo: Ryo -> リョウ, and the character remains mysterious.