scumble Meaning, Definition & Usage

  1. noun the application of very thin coat of color over the surface of a picture

WordNet

Scum"ble transitive verb
Etymology
Freq. of scum. &root; 158.
Wordforms
imperfect & past participle Scumbled ; present participle & verbal noun Scumbling
Definitions
  1. (Fine Arts) To cover lighty, as a painting, or a drawing, with a thin wash of opaque color, or with color-crayon dust rubbed on with the stump, or to make any similar additions to the work, so as to produce a softened effect.

Webster 1913