Where does “nonbinariness” come from?

nonbinariness (English) comes from English nonbinary, from English binary, from Late Latin binarius, from Latin bīnī, from Latin bis, from Latin color, from Ancient Greek μέτρον, from Ancient Greek -τρον — Derives agent nouns from verbs, denoting someone...

Ancestry of “nonbinariness”, step by step

StepLanguageWordMeaning
1Englishnonbinary
2EnglishbinaryBeing in a state of one of two mutually exclusive...
3Late Latinbinariusconsisting of two; Containing or consisting of...
4Latinbīnī
5Latinbistwice, two times, on two occasions, in two ways
6Latincolorcolour, shade; color; pigment; complexion
7Ancient Greekμέτρονsomething used to measure: measure, rule, weight;...
8Ancient Greek-τρονForms instrument nouns
9Proto-Hellenic-tronForms instrument nouns from verb stems
10Proto-Indo-European-tromForms nouns denoting a tool or instrument
11Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...
Every word from Proto-Indo-European -tḗrEvery word from Ancient Greek -τρονEvery word from Ancient Greek μέτρον