Where does “栄養不足” come from?

栄養不足 (Japanese) comes from Japanese 不足, from Middle Chinese 不足.

Ancestry of “栄養不足”, step by step

栄養不足 traces back through two separate lines of ancestry.

via Japanese 不足

StepLanguageWordMeaning
1Japanese不足insufficient; unsatisfactory; insufficiency,...
2Middle Chinese不足

via Japanese 栄養

StepLanguageWordMeaning
1Japanese栄養nutrition, nourishment
Every word from Middle Chinese 不足Every word from Japanese 不足