cling, hang on, depend
縋 centers on holding onto something for support: clinging physically, hanging on, or depending on someone or something emotionally or practically.
縋 combines 糸 (thread) with 追 (pursue, follow), suggesting a thread that follows or clings to something. The exact historical development is uncertain, but the phono-semantic structure with 追 contributing the sound ツイ is plausible.
The left side is thread 糸, and the right side is pursue 追. Imagine a thread that pursues and clings to your clothes, hanging on tightly.
For ツイ, picture a thread clinging to a pair of tweezers: tweeze -> ツイ, and the thread depends on the tweezers to hold it.
to cling to; to hang onto
to cling to; to depend on; to embrace; to hug
don't be a burden to others; lean on your cane, but don't lean on others