虚弱
xū ruò · HSK 7
weak
🍂 虚 empty/hollow + 弱 weak = hollowed-out and weak, like poor health
虚 means empty or hollow and 弱 means weak; a body that is 虚弱 runs on empty, drained of strength. 弱 stacks two 弓 bow shapes with feeble strokes, reinforcing the frail, sapped sense.
虚 — tiger radical 虍 + hill 丘 (now 业)
Originally depicted a large mound or hill where tigers (虍) roamed, written with 虍 over 丘. Because such high places were often deserted, the meaning shifted from 'big hill' to 'empty, void, vacant,' and by extension 'unreal' or 'humble.' The bottom 丘 was later simplified to 业.
弱 — two 弓 (bows) + two 彡 (feathers/strokes)
Originally depicted two bent bows with drooping feathers or fine hairs, suggesting something pliant and weak. The doubled 弓 emphasizes flexibility, while 彡 evokes delicate, thin strands. The image of a soft, bending bow extended to mean 'weak,' 'frail,' or 'young.'