bend around
綰 centers on the action of bending or wrapping something around, like coiling a cord or encircling an object.
綰 combines 糸 (thread) with 官, which likely contributes the sound and suggests an official or controlled action, together conveying the idea of bending or coiling with thread.
The left side 糸 is thread, and the right side 官 looks like an official overseeing something. Picture an official bending thread around a bundle to secure it.
For ワン, imagine a single loop of thread bending around like the number one: one -> ワン, and the thread coils once.