either of two small, usually solitary antelopes of southern Africa, Raphicerus melanotis, or R. sharpei(Sharpe's grysbok), having a light to dark reddish-brown coat speckled with white.
Origin: 1780–90; < Afrik, equiv. to grys gray (< D grijs;see griseous) + bokbuck1
[grahys-bok, greys-] 
bɒk