Where does “semiorthogonal” come from?

semiorthogonal (English) comes from English orthogonal, from Middle French orthogonal, from Medieval Latin orthogonalis, from Latin orthogonius, from Ancient Greek ὀρθογώνιος, from Ancient Greek ὀρθός, from Proto-Hellenic ortʰwós, from Proto-Indo-European h₃r̥dʰwós — Creates adjectives from verb stems.

semiorthogonal (English): Having the property that every subcategory is in the set of orthogonal subcategories of every higher order subcategory

Definitions

  1. Having the property that every subcategory is in the set of orthogonal subcategories of every higher order subcategory

Ancestry of “semiorthogonal”, step by step

semiorthogonal traces back through two separate lines of ancestry.

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

via English semi

StepLanguageWordMeaning
1EnglishsemiA semi-detached house; A semitrailer; a...
2Englishsemi-half; partial, incomplete; somewhat, rather,...
3Latinsēmi-half
4Proto-Indo-Europeansēmihalf; partially
Every word from Proto-Indo-European -wós