Where does “ベトナム社会主義共和国” come from?

ベトナム社会主義共和国 (Japanese) comes from Japanese 社会主義, from Japanese 主義, from English -ism, from Latin -ismus, from Ancient Greek -ισμός, from Ancient Greek -μός, from Proto-Indo-European -mós — Creates action/result nouns from verb stems.

Ancestry of “ベトナム社会主義共和国”, step by step

ベトナム社会主義共和国 traces back through 3 separate lines of ancestry.

via Japanese 社会主義

StepLanguageWordMeaning
1Japanese社会主義socialism
2Japanese主義a principle or set of principles; a doctrine; an...
3English-ismUsed to form nouns of action or process or result...
4Latin-ismus-ism
5Ancient Greek-ισμόςForms abstract nouns
6Ancient Greek-μόςForms abstract nouns
7Proto-Indo-European-mósCreates action/result nouns from verb stems

via Japanese ベトナム

StepLanguageWordMeaning
1JapaneseベトナムVietnam
2EnglishVietnamA long war which a dominating foreign occupier of...
3VietnameseViệt NamVietnamese
4VietnameseNam ViệtNanyue
5Middle Chinese

via Japanese 共和国

StepLanguageWordMeaning
1Japanese共和国republic
2Japanesea land, a large place; a country in general, a...
3Old Japanese
Every word from Proto-Indo-European -mósEvery word from English -ismEvery word from Ancient Greek -μός