兜
doū · HSK 7
to move in a circle
👜 doū sounds like DO — do a loop, circling back to your pocket
The top of 兜 resembles a helmet or covering, with 儿 (legs) at the bottom carrying it. A pocket wraps things up and holds them, and doū echoes the English DO — you do a circle, you do a wrap, you do a pocket check.
兜 — 白 (white) on top + 兒 base (child/legs)
兜 originally pictured a helmet or hood covering the head, with the upper part suggesting the headgear and the lower part showing a person beneath it. Over time the meaning broadened from 'helmet' to 'pouch' or 'hood-like pocket,' since both wrap around and hold something. Today it commonly means 'pocket' or 'to wrap up.'