纠缠
jiū chán · HSK 7
to nag
🧶 纠 (twist) + 缠 (wind) — both with the 纟silk thread radical, so: threads twisted and wound = a tangle
纠缠 stacks two thread-radical (纟) characters that each mean twisting or winding cord. Two snarled threads give the literal sense of being in a tangle, and the figurative sense of someone who keeps winding around you to nag or pester.
缠 — silk radical 糹+ 廛 (chán, phonetic)
A semantic-phonetic compound. The silk radical 糹 gives the meaning 'thread' or 'binding,' while 廛 supplies the sound. The original sense was wrapping or winding thread around something, which extended to mean 'to entangle,' 'to coil,' or 'to pester.'