Where does “揮発油” come from?

揮発油 (Japanese) comes from Japanese 油 — fuel; oil.

Ancestry of “揮発油”, step by step

揮発油 traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japanesefuel; oil

via Japanese 揮発

StepLanguageWordMeaning
1Japanese揮発volatilization
Every word from Japanese
揮発油 — Etymology, Origin & Word History | Etymology Explorer