不足
ふそく · fusoku · JLPT N3 · noun
shortage
📉 不足 = not + enough (足 also means foot), so not enough to stand on
不 (fu) means not, and 足 (soku) means foot and also enough. Something that is not enough is fusoku: a shortage. Same pair as Chinese 不足 bùzú.
不 — single pictograph; bird flying upward
Originally a pictograph in oracle bone script, traditionally interpreted as a bird flying up toward the sky and unable to come down, suggesting negation or refusal. Over time it became the standard negation word in Chinese, used before verbs and adjectives to mean 'not'.
足 — top 口 (mouth/enclosure) + bottom 止 (foot)
Originally a pictograph of a leg and foot, with the upper square representing the knee or shin and the lower part 止 depicting the foot itself. It primarily means 'foot' and by extension 'sufficient' or 'enough,' a meaning shift likely from the idea of standing firmly or having a solid footing.