Verdaccio

Verdaccio is an Italian name for the mixture of black, white, and yellow pigments resulting in a grayish or yellowish (depending on the proportion) soft greenish brown. Verdaccio became an integral part of fresco painting, in which this color is used for defining tonal values, forming a complete monochromatic underpainting. Often architectural det...
Found on http://en.wikipedia.org/wiki/Verdaccio

verdaccio

Old term for green underpainting.
Found on http://www.rexart.com/glossary.html
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