Where does “青酸化合物” come from?

青酸化合物 (Japanese) comes from Japanese 青酸, from Japanese 酸, from Middle Chinese 酸.

Ancestry of “青酸化合物”, step by step

青酸化合物 traces back through two separate lines of ancestry.

via Japanese 青酸

StepLanguageWordMeaning
1Japanese青酸prussic acid
2Japanese酸sourness; acid; Alternative spelling of 酢
3Middle Chinese酸—

via Japanese 化合物

StepLanguageWordMeaning
1Japanese化合物a chemical compound
Every word from Middle Chinese 酸 →Every word from Japanese 酸 →Every word from Japanese 青酸 →