string of coins, child's obi, nappy
繦 centers on a cord or band used to tie or hold things together: a string of coins, a child's obi sash, or a nappy/diaper. The common idea is a textile strip that binds or wraps.
繦 combines 糸 (thread) with 强, which likely contributes the sound キョウ and the idea of strength or tension, suggesting a strong cord or band.
The left side 糸 is thread, and the right side 强 looks like a strong bow (弓) with something tied. Imagine a strong thread used to tie coins together or to secure a child's obi or nappy.
For キョウ, picture a strong cord tying coins together in Kyoto (京都, きょうと): Kyoto -> キョウ, and the cord keeps the coins from scattering.