闲
xián · HSK 5
idle
🚪🌙 门 (gate) + 月 (moon) = moonlight through the gate = idle leisure
闲 decomposes into 门 (gate/door) on the outside and 月 (moon) inside. The etymology: when the moon is visible through your gate, you have nothing pressing to do — pure leisure time. Simplified form of 閑, which used 木 (wood) inside instead.
闲 — gate 門 + tree 木
Originally depicts a tree or wooden bar placed within a gate (門), suggesting a barrier or enclosure. The simplified form 闲 keeps 木 inside 门. Meaning extended from 'barrier/fence' to 'enclosed space,' then to 'leisure' or 'idle' — being free from work, as if shut away at rest.