Where does “diacide” come from?

diacide (French) comes 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.

diacide (French): diacid

Definitions

diacid

Ancestry of “diacide”, step by step

Step	Language	Word	Meaning
1	French	acide	acid, acidic, sour, tart; acid, acidic; acid
2	Latin	acidus	sour, tart, acid, bitter; harsh, grating, rough,...
3	Latin	aceō	—
4	Proto-Italic	akēō	be sharp-tasting, be sour
5	Proto-Indo-European	h₂eḱ-éh₁-ye-ti	—
6	Proto-Indo-European	h₂eḱ-	sharp

Every word from Proto-Indo-European h₂eḱ- →

diacide — Etymology, Origin & Word History | Etymology Explorer