Dun \Dun\, a. [AS. dunn. of Celtic origin; cf. W. dwn, Ir. &
Gael. donn.]
Of a dark color; of a color partaking of a brown and black;
of a dull brown color; swarthy.
Summer's dun cloud comes thundering up. -- Pierpont.
Chill and dun Falls on the moor the brief November day.
--Keble.
{Dun crow} (Zo["o]l.), the hooded crow; -- so called from its
color; -- also called {hoody}, and {hoddy}.
{Dun diver} (Zo["o]l.), the goosander or merganser.