拘束
jū shù · HSK 7
constrained
⛓️ 拘 = detain + 束 = bind: held and tied, so restricted
拘 carries the hand radical 扌 for grabbing or detaining; 束 shows something bundled and tied shut. Together the two binding actions give the sense of being restrained, constrained, or awkwardly hemmed in.
束 — 木 (tree) with 口 wrapped around middle
Pictograph of a bundle: a tree or sticks (木) tied together with a band or rope (depicted by the enclosing 口 in the middle). The original sense was 'to bind' or 'a bundle,' which extended to meanings like 'to restrain,' 'to control,' and the measure word for bundled things.