Where does “nitrooxidative” come from?

nitrooxidative (English) comes from English Nitro, from English nitrocellulose, from English cellulose, from French cellulose, from French cellule, from Latin cellula, from Latin -ulus, from Proto-Italic -olos — Forms agent nouns from verbal roots.

Ancestry of “nitrooxidative”, step by step

nitrooxidative traces back through two separate lines of ancestry.

via English Nitro

StepLanguageWordMeaning
1EnglishNitroThe univalent NO2 functional group
2EnglishnitrocelluloseA cotton-like material, made from cellulose by...
3EnglishcelluloseA complex carbohydrate that forms the main...
4Frenchcellulosecellulose
5Frenchcellulecell; table cell
6Latincellulasmall room, especially that of a slave; humble...
7Latin-ulusUsed to form a diminutive of a noun, indicating...
8Proto-Italic-olos
9Proto-Italic-elosForms desubstantival and deadjectival diminutive nouns
10Proto-Indo-European-e-lós
11Proto-Indo-European-lósForms agent nouns from verbal roots

via English oxidative

StepLanguageWordMeaning
1EnglishoxidativeOf, relating to, or produced by oxidation
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
Every word from Proto-Indo-European -lós