the.com/grizzly bear

means A large North American brown bear with grizzled, silver-tipped fur, a pronounced shoulder hump of muscle, and a temperament best admired from a great distance.

from The name comes from 'grizzled,' meaning streaked with gray — a nod to the silvery tips on its brown fur, not (despite the tempting mix-up) 'grisly' meaning horrifying. The confusion is old and understandable: naturalist George Ord formally named the species Ursus arctos horribilis in the early 1800s, baking the 'horrible' idea right into its scientific name even as the common English name stuck with the gentler 'grizzled.' So the bear ended up with two names arguing about whether it's gray or terrifying — it's both.