Where does “nonproteid” come from?

nonproteid (English) comes from English proteid, from English protein, from French protéine, from French -ine, from French -é, from Middle French -é, from Old French -é, from Latin -a.

Ancestry of “nonproteid”, step by step

nonproteid traces back through two separate lines of ancestry.

via English proteid

StepLanguageWordMeaning
1EnglishproteidA protein; Of or pertaining to proteins;...
2EnglishproteinAny of numerous large, complex naturally-produced...
3Frenchprotéineprotein
4French-inefeminine singular of -in; female equivalent of...
5French-épast participle root verb suffix of regular -er...
6Middle French-épast participle root verb suffix of regular; -ed, -en, -n
7Old French-éused to form past participles of regular -er...
8Latin-asuffixed to the roots of verbs, forms agent...
9Proto-Italic-āForms masculine agent nouns from prefixed or compounded bases
10Proto-Indo-European-éh₂—

via English non

StepLanguageWordMeaning
1EnglishnonObsolete form of none
2Frenchnonno; not; a no, a negative response
3Old Frenchnonno; not; Alternative form of nom
4Latinnōnnot
5Old Latinnoenum—
6Proto-Indo-Europeanóynosone; single
Every word from Proto-Indo-European -éh₂ →Every word from French -ine →Every word from Latin -a →