fine cloth
繐 centers on a specific type of fine, delicate cloth. The meaning is narrow and concrete, without broader abstract extensions.
繐 combines 糸 (thread/silk) with 惠, which likely contributes the sound. The character was created to name a specific fine cloth, but the exact historical development is uncertain.
The left side is 糸 (thread), and the right side 惠 looks intricate and delicate. Picture fine silk threads woven into an elaborate, high-quality cloth.
For ケイ, imagine a fine cloth used to make a delicate cape: cape -> ケイ, and the cloth is so fine it feels like a whisper.
—