See under verditer.
either of two pigments, consisting usually of carbonate of copper prepared by grinding either azurite (blue verditer) or malachite (green verditer).
Origin of verditer
1495–1505; < Middle French verd de terre (French vert de terre) green of earth
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019