light, airy
僄 centers on lightness in weight or movement: something physically light, airy, or swift. The given meanings all point to a lack of heaviness or quick, effortless motion.
僄 combines 亻 (person) with 票, which likely contributes the sound and the idea of lightness or floating. The exact historical development is uncertain.
A person 亻 beside 票, which looks like a ticket floating in the air. Imagine a person so light and airy they could be carried away like a drifting ticket.
For ヒョウ, picture a light, airy person floating like a hyou (豹, leopard) leaping effortlessly through the air: hyou -> ヒョウ.