Where does “Eurasian Union” come from?

Eurasian Union (English) comes from English Eurasian, from English Euro, from English eurocurrency, from English Euro-, from English Europe, from Middle English Europe, from Latin Eurōpa, from Ancient Greek Εὐρώπη — to see; eye.

Ancestry of “Eurasian Union”, step by step

Eurasian Union traces back through two separate lines of ancestry.

via English Eurasian

StepLanguageWordMeaning
1EnglishEurasianOf or pertaining to the continent of Eurasia, or...
2EnglishEuroClipping of European; Alternative spelling of...
3EnglisheurocurrencyAlternative form of Eurocurrency
4EnglishEuro-pertaining to Europe, especially as a political...
5EnglishEuropeA political entity; the European Union
6Middle EnglishEurope
7LatinEurōpa
8Ancient GreekΕὐρώπηEuropa; Europe
9Ancient Greekὤψto the eye; in the face; eye
10Proto-Hellenicókʷseye
11Proto-Indo-Europeanh₃ókʷseye
12Proto-Indo-Europeanh₃ekʷ-to see; eye

via English union

StepLanguageWordMeaning
1EnglishunionThe act of uniting or joining two or more things...
2Old Frenchunionunity, union
3Late Latinuniooneness, unity; a unity, union; the number one,...
4Latinūniōa unity, union
5Latin-iō
6Proto-West Germanic-jōForms agent nouns from verbs
7Proto-Indo-European-yétiCreates intransitive, often deponent,...
8Proto-Indo-Europeanyé-
9Chichewaiyehe, she
Every word from Proto-Indo-European h₃ekʷ-Every word from Proto-Indo-European h₃ókʷsEvery word from Proto-Hellenic ókʷs