Where does “orthosymmetric” come from?

orthosymmetric (English) comes from English symmetric, from English symmetry, from Latin symmetria, from Ancient Greek συμμετρία, from Ancient Greek σύμμετρος, from Ancient Greek μέτρον, from Ancient Greek -τρον, from Proto-Hellenic -tron — Forms nouns denoting a tool or instrument.

orthosymmetric (English): That has equal elements of the secondary diagonal

Definitions

  1. That has equal elements of the secondary diagonal

Ancestry of “orthosymmetric”, step by step

orthosymmetric traces back through two separate lines of ancestry.

via English symmetric

StepLanguageWordMeaning
1EnglishsymmetricSymmetrical; Of a relation "R" on a set "S", such...
2EnglishsymmetryExact correspondence on either side of a dividing...
3Latinsymmetriasymmetry, proportion
4Ancient Greekσυμμετρίαcommensurability; symmetry, due proportion; a...
5Ancient Greekσύμμετροςsymmetrical
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

via English ortho

StepLanguageWordMeaning
1EnglishorthoAn isomer of a benzene derivative having two...
Every word from Proto-Indo-European -trom
orthosymmetric — Etymology, Origin & Word History | Etymology Explorer