Where does “biorthogonal” come from?

biorthogonal (English) comes from English bi, from English biceps, from Latin biceps, from Latin bis, from Latin color, from Ancient Greek μέτρον, from Ancient Greek -τρον, from Proto-Hellenic -tron — Derives agent nouns from verbs, denoting someone...

biorthogonal (English): Describing a pair of topological vector spaces...

Definitions

  1. Describing a pair of topological vector spaces...

Ancestry of “biorthogonal”, step by step

biorthogonal traces back through two separate lines of ancestry.

via English bi

StepLanguageWordMeaning
1EnglishbiBisexual; A bisexual person; A type of jade disk...
2EnglishbicepsAny muscle having two heads; Specifically, the...
3Latinbicepsdouble-headed, having two heads; having two...
4Latinbistwice, two times, on two occasions, in two ways
5Latincolorcolour, shade; color; pigment; complexion
6Ancient Greekμέτρονsomething used to measure: measure, rule, weight;...
7Ancient Greek-τρονForms instrument nouns
8Proto-Hellenic-tronForms instrument nouns from verb stems
9Proto-Indo-European-tromForms nouns denoting a tool or instrument
10Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via English orthogonal

StepLanguageWordMeaning
1EnglishorthogonalOf two objects, at right angles; perpendicular to...
2Middle Frenchorthogonal
3Medieval Latinorthogonalisorthogonal
4Latinorthogoniusright-angled; rectangular; orthogonal
5Ancient Greekὀρθογώνιοςright-angled; rectangular
6Ancient Greekὀρθόςstraight, upright, erect; straight forward, in a...
7Proto-Hellenicortʰwós
8Proto-Indo-Europeanh₃r̥dʰwós
9Proto-Indo-Europeanh₃erdʰ-to increase, grow; upright, high
10Proto-Indo-European-wósCreates adjectives from verb stems
Every word from Proto-Indo-European -tḗrEvery word from Ancient Greek -τρονEvery word from Ancient Greek μέτρον