Where does “Dene-Yeniseian” come from?

Dene-Yeniseian (English) comes from English Dene, from Middle English dene, from Latin dēnī, from Latin decem, from Latin -nus, from Proto-Italic -nos, from Proto-Indo-European -nós — Creates verbal adjectives from roots.

Dene-Yeniseian (English): A proposed language family linking the Na-Dene languages of North America and the Yeniseian languages of Siberia

Definitions

  1. A proposed language family linking the Na-Dene languages of North America and the Yeniseian languages of Siberia

Ancestry of “Dene-Yeniseian”, step by step

Dene-Yeniseian traces back through two separate lines of ancestry.

via English Dene

StepLanguageWordMeaning
1EnglishDeneAn Athabascan people of Canada, especially of the...
2Middle Englishdenevalley
3Latindēnī
4Latindecemten; 10
5Latin-nus-an
6Proto-Italic-nosCreates verbal adjectives from verb stems
7Proto-Indo-European-nósCreates verbal adjectives from roots

via English Yeniseian

StepLanguageWordMeaning
1EnglishYeniseianA member of the original ethnolinguistic group...
2EnglishYeniseithe longest river of Siberia. It flows from south to north into the Arctic Ocean, splitting Siberia in two parts: the Eastern Siberia and the Western Siberia
3RussianЕнисе́й
4EvenkiИонэссиbig water
Every word from Proto-Indo-European -nósEvery word from Latin -nusEvery word from Latin decem