1.  umber(n = noun.substance) Array - an earth pigment; Array
is a kind of earth color
has particulars: raw umber, burnt umber

2.  umber(n = noun.attribute) burnt umber, chocolate, coffee, deep brown - a medium brown to dark-brown color; Array
is a kind of brown, brownness
Derived form adjective umber₁

   umber(s = adj.all) Array - of the color of any of various natural brown earth pigments; Array
Derived form noun umber₂

1.  A brown or reddish pigment used in both oil and water colors, obtained from certain natural clays variously colored by the oxides of iron and manganese. It is commonly heated or burned before being used, and is then called burnt umber; when not heated, it is called raw umber. See Burnt umber, below. [1913 Webster]

2.  An umbrere. [1913 Webster]

3.  See Grayling, 1. [1913 Webster]

4.  An African wading bird (Scopus umbretta) allied to the storks and herons. It is dull dusky brown, and has a large occipital crest. Called also umbrette, umbre, and umber bird. [1913 Webster]

   Of or pertaining to umber; resembling umber; olive-brown; dark brown; dark; dusky. [1913 Webster]
"Their harps are of the umber shade
That hides the blush of waking day." [1913 Webster]

   To color with umber; to shade or darken; as, to umber over one's face. B. Jonson. [1913 Webster]

umber, n. & adj.
--n.
1 a natural pigment like ochre but darker and browner.
2 the colour of this.
--adj.
1 of this colour.
2 dark, dusky.

Etymology:
F (terre d') ombre or It. (terra di) ombra = shadow (earth), f. L UMBRA or Umbra fem. of Umber Umbrian

burnt umber, raw umber