Where does “Euclidian” come from?

Euclidian derives from English Euclid, from Latin -ianus and Latin -ius suffixes applied to Latin -um, from Ancient Greek εὖ meaning "well" and κλέος meaning "fame," with roots in Proto-Italic -os and Proto-Indo-European ḱléwos.

Euclidian (English): Alternative spelling of Euclidean

Definitions

  1. Alternative spelling of Euclidean

Ancestry of “Euclidian”, step by step

Euclidian traces back through two separate lines of ancestry.

via French euclidien

StepLanguageWordMeaning
1FrencheuclidienEuclidean
2FrenchEuclideEuclid ancient Greek mathematician
3LatinEuclīdesEuclid
4Ancient GreekΕὐκλείδηςin particular, the mathematician Euclid
5Ancient GreekΕὐκλῆς
6Ancient Greek-κλῆςAn element found in given names
7Ancient Greek-κλέης
8Ancient Greekκλέοςrumour, report; good report, fame, glory; bad...
9Proto-Hellenickléwosfame
10Proto-Indo-Europeanḱléwosfame
11Proto-Indo-Europeanḱlew-to hear
12Proto-Indo-Europeanḱel-to cover; to incline

via English Euclid

StepLanguageWordMeaning
1EnglishEuclidEuclid of Alexandria, a Greek mathematician, fl. 300 BC
Every word from Proto-Indo-European ḱel-Every word from Proto-Indo-European ḱlew-Every word from Proto-Indo-European ḱléwos