Where does “non-avian dinosaur” come from?

non-avian dinosaur (English) comes from English dinosaur, from French dinosaure, from German Dinosaurier, from Italian dinosauro, from Russian диноза́вр, from Translingual Dinosauria, from Translingual Dinosaurus, from Ancient Greek δεινός — claw, nail; nail.

non-avian dinosaur (English): Any of the species belonging to the clade Dinosauria that are not also members of the clade Aves

Definitions

  1. Any of the species belonging to the clade Dinosauria that are not also members of the clade Aves

Ancestry of “non-avian dinosaur”, step by step

non-avian dinosaur traces back through two separate lines of ancestry.

via English dinosaur

StepLanguageWordMeaning
1EnglishdinosaurIn scientific usage, any of the animals belonging...
2Frenchdinosauredinosaur
3GermanDinosaurierdinosaur
4Italiandinosaurodinosaur
5Russianдиноза́врdinosaur
6TranslingualDinosauriasuperorder
7TranslingualDinosaurusgenus), now Brithopus in †Dinocephalia}}
8Ancient Greekδεινόςterrible, horrible, fearful, astounding; danger;...
9Ancient Greekὄνυξclaw, nail, hoof, talon; Anything which resembles...
10Proto-Indo-Europeanh₃nogʰ-claw, nail; nail

via English non-avian

StepLanguageWordMeaning
1Englishnon-avianNot avian
2Englishnon-Used in the sense of no or none, to show lack of...
3Latinnōnusninth
4Latinnovenosaccusative masculine plural of novēnus
5Latinnovemnine; 9; first-person singular present active...
6LatinnovoI make new, renew, refresh; I alter, change;...
7Proto-Italicnowāō
8Proto-Indo-Europeannéweh₂tito renew
9Proto-Indo-Europeannéwosnew
10Proto-Indo-Europeannew-new; to nod, assent to
Every word from Proto-Indo-European h₃nogʰ-
non-avian dinosaur — Etymology, Origin & Word History | Etymology Explorer