1. a kind of earth containing oxides of manganese and iron, used as a pigment: raw umber is yellowish-brown; burnt, or calcined, umber is reddish-brown
2. a yellowish-brown or reddish-brown color
3. of the color of raw umber or burnt umber
4. to color with or as with umber
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'umber'
Fr (terre d')ombre
< It (terra d')ombra,
lit., (earth of) shade, prob. < L umbra,
a shade, shadow (but based on ? Umbria