GRA'YLING, noun A fish of the genus Salmo, called also umber, a voracious fish, about sixteen or eighteen inches in length, of a more elegant figure than the trout; the back and sides of a silvery gray color. It is found in clear rapid streams in the north of Europe, and is excellent food.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI