Kobus ellipsiprymnus

Buck Buck (b[u^]k), n. [OE. buk, bucke, AS. bucca, bua, he-goat; akin to D. bok, OHG. pocch, G. bock, Ir. boc, W. bwch, Corn. byk; cf. Zend b[=u]za, Skr. bukka. [root]256. Cf. {Butcher}, n.] 1. The male of deer, especially fallow deer and antelopes, or of goats, sheep, hares, and rabbits. [1913 Webster]

Note: A male fallow deer is called a fawn in his first year; a pricket in his second; a sorel in his third; a sore in his fourth; a buck of the first head in his fifth; and a great buck in his sixth. The female of the fallow deer is termed a doe. The male of the red deer is termed a stag or hart and not a buck, and the female is called a hind. --Brande & C. [1913 Webster]

2. A gay, dashing young fellow; a fop; a dandy. [1913 Webster]

The leading bucks of the day. --Thackeray. [1913 Webster]

3. A male Indian or negro. [Colloq. U.S.] [1913 Webster]

Note: The word buck is much used in composition for the names of antelopes; as, bush buck, spring buck. [1913 Webster]

{Blue buck}. See under {Blue}.

{Water buck}, a South African variety of antelope ({Kobus ellipsiprymnus}). See Illust. of {Antelope}. [1913 Webster]