连忙
lián máng · HSK 3
at once
⚡ 连 (connect/in succession) + 忙 (busy) = busy back-to-back = promptly
连 means linked or one-after-another; 忙 means busy or hurried. Stack them and the action follows immediately, without a gap — hence promptly or at once.
连 — 辶 (walk) + 车 (cart/vehicle)
Originally a compound of the 'walk/movement' radical 辶 and 车 (cart), depicting carts moving in succession along a road. From this came the core sense of things linked or following one after another, extending to modern meanings like 'connect,' 'join,' and 'continuous.'
忙 — heart radical 忄 + 亡 (lose/perish)
忙 is a semantic-phonetic compound. The heart radical 忄 gives the meaning, suggesting a state of mind, while 亡 (lose, perish) supplies the sound. The image is of a heart so overwhelmed it 'loses itself' — hence 'busy, hurried, flustered'.