Where does “oxohydroxide” come from?

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

Ancestry of “oxohydroxide”, step by step

oxohydroxide traces back through two separate lines of ancestry.

via English hydroxide

StepLanguageWordMeaning
1EnglishhydroxideAn univalent anion based on the hydroxyl...
2EnglishoxideA binary chemical compound of oxygen with another...
3FrenchoxideObsolete spelling of oxyde
4Frenchacideacid, acidic, sour, tart; acid, acidic; acid
5Latinacidussour, tart, acid, bitter; harsh, grating, rough,...
6Latinaceōto be sour
7Proto-Italicakēōbe sharp-tasting, be sour
8Proto-Indo-Europeanh₂eḱ-éh₁-ye-ti
9Proto-Indo-Europeanh₂eḱ-sharp

via English oxo

StepLanguageWordMeaning
1EnglishoxoA substituent oxygen atom connected to another...
2LatinŌxus
3Ancient GreekὮξος
4Proto-Iranianwaxš-
Every word from Proto-Indo-European h₂eḱ-Every word from Proto-Indo-European h₂eḱ-éh₁-ye-tiEvery word from Proto-Italic akēō