noose, hang death, tie, bind
繯 centers on binding with cord or rope: tying, making a noose, or the act of hanging by a noose. The meanings all involve a cord that encircles and constrains.
繯 combines 糸 (thread) with 睘, which likely contributes the sound and the idea of encircling or surrounding. The character is associated with binding or a noose.
The left side is thread 糸, and the right side 睘 looks like something encircled or looped. Picture a thread forming a loop that tightens into a noose.
For ケン, imagine a hangman named Ken tying a noose: Ken -> ケン, and the thread 糸 forms the fatal loop.