Where does “diketoacid” come from?

diketoacid (English) comes from English ketoacid, from English acid, from French acide, from Latin acidus, from Latin aceō, from Proto-Italic akēō, from Proto-Indo-European h₂eḱ-éh₁-ye-ti, from Proto-Indo-European h₂eḱ- — sharp.

Ancestry of “diketoacid”, step by step

diketoacid traces back through two separate lines of ancestry.

via English ketoacid

StepLanguageWordMeaning
1EnglishketoacidAlternative spelling of keto acid
2EnglishacidSour, sharp, or biting to the taste; tart; having...
3Frenchacideacid, acidic, sour, tart; acid, acidic; acid
4Latinacidussour, tart, acid, bitter; harsh, grating, rough,...
5Latinaceōto be sour
6Proto-Italicakēōbe sharp-tasting, be sour
7Proto-Indo-Europeanh₂eḱ-éh₁-ye-ti
8Proto-Indo-Europeanh₂eḱ-sharp

via English Di

StepLanguageWordMeaning
1EnglishDi
Every word from Proto-Indo-European h₂eḱ-Every word from Proto-Indo-European h₂eḱ-éh₁-ye-tiEvery word from Proto-Italic akēō
diketoacid — Etymology, Origin & Word History | Etymology Explorer