How did the reandier get there names?

Reindeer, known scientifically as Rangifer tarandus, derive their name from the Old Norse Word "hreindýri," which translates to "reindeer" or "horned animal." The term "rein" is believed to stem from the Germanic Word "rēn," meaning "to run," reflecting their swift movements. These animals have been integral to the cultures of Arctic and subarctic peoples, who named them based on their characteristics and behaviors.