RUDD, noun [probably from red, ruddy.] A fish of the genus Cyprinus, with a deep body like the bream, but thicker, a prominent back, and small head. The back is of an olive color; the sides and belly yellow, marked with red; the ventral and anal fins and tail of a deep red color.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI