Where does “ยุโรปตะวันออก” come from?

ยุโรปตะวันออก (Thai) comes from Thai ยุโรป, from English Europe, from Middle English Europe, from Latin Eurōpa, from Ancient Greek Εὐρώπη, from Ancient Greek ὤψ, from Proto-Hellenic ókʷs, from Proto-Indo-European h₃ókʷs — to see; eye.

Ancestry of “ยุโรปตะวันออก”, step by step

ยุโรปตะวันออก traces back through two separate lines of ancestry.

via Thai ยุโรป

StepLanguageWordMeaning
1ThaiยุโรปEuropean
2EnglishEuropeA political entity; the European Union
3Middle EnglishEurope
4LatinEurōpa
5Ancient GreekΕὐρώπηEuropa; Europe
6Ancient Greekὤψto the eye; in the face; eye
7Proto-Hellenicókʷseye
8Proto-Indo-Europeanh₃ókʷseye
9Proto-Indo-Europeanh₃ekʷ-to see; eye

via Thai ตะวันออก

StepLanguageWordMeaning
1Thaiตะวันออกeast
2Thaiตะวันsun
3Thaiตาวันsun
4Thaiวันday; daytime; today
5Sanskritवनa tree; a forest, wood, grove, thicket, quantity...
6Proto-Indo-Europeanwen-to wish for, desire, strive for, win, love; to...
Every word from Proto-Indo-European h₃ekʷ-Every word from Proto-Indo-European h₃ókʷsEvery word from Proto-Hellenic ókʷs