Grizzly
来自Big Physics
mid 16th century (as adjective): from grizzle1. The noun dates from the early 19th century.
wiktionary
From grizzle + -y.
grizzly ( comparative grizzlier, superlative grizzliest)
etymonline
grizzly (adj.)
"somewhat gray," 1590s, from grizzle "gray-colored" + -y (1). Also see grizzled. Grizzly bear (ursus horribilis) for the large ferocious bear of the western U.S., is recorded by 1806; sometimes said to belong rather to grisly (q.v.), but either adjective suits it.