1. a brown earth that is darker in color than ocher and sienna because of its content of manganese and iron oxides and is highly valued as a permanent pigment either in the raw or burnt state
[origin: ca. 1568; probably from obsolete English, shade, color, from Middle English ombre, umbre shade, shadow, from Anglo-French, from Latin umbra]
Red swirls the dust
O’er the Plains of Gilban,
Stirred by the breezes that eddy the air.
Carpeted, mingled, crimsoned with sword rust;
Ages’ old relics of fierce battles there.
West turns to umber,
Ghastly the white east;
O’er the red desert sands
Sinks the sun dim.
Like an old high priest
Over the vague lands,
Whisper the winds from the horizon’s rim.
[from “The Plains of Gilban”; this is the complete poem as it appears in The Collected Poetry of Robert E. Howard, p. 280 and A Rhyme of Salem Town, p. 140]